<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>sch13d-a.txt
<DESCRIPTION>SC 13D/A
<TEXT>
<PAGE>
_______________________________________________________________________________

CUSIP No.  45031W 10 7                                            Page 1 of 11
_______________________________________________________________________________



                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 SCHEDULE 13D/A
                               AMENDMENT NUMBER 3

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                              I-Sector Corporation
 ------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
 ------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                   45031W 10 7
                    ----------------------------------------
                                 (CUSIP Number)

                          PEAK6 Capital Management, LLC
                        209 S. LaSalle Street, Suite 200
                             Chicago, Illinois 60604
 ------------------------------------------------------------------------------
   (Name, Address and Telephone Number of Person Authorized to Receive Notices
                               and Communications)

                                  June 24, 2002
          ------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement

If the filing person has previously filed a statement on Schedule 13G to report
the acquisitions which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box / /.

NOTE: Six copies of this statement, including all exhibits, should be filed with
the Commission. See Rule 13d-1(a) for other parties to whom copies are to be
sent.

*The Remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the act (however, see the
Notes).


<PAGE>

_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                    Page 2 of 11
_______________________________________________________________________________

    1      NAME OF REPORTING PERSON
           S.S OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                Jennifer J. Makowiec
______________________________________________________________________________

    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*    (a)  [x]
                                                                (b)  [ ]
______________________________________________________________________________

    3      SEC USE ONLY
______________________________________________________________________________

    4      SOURCE OF FUNDS*

           WC
______________________________________________________________________________

    5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
           PURSUANT TO ITEMS 2(d) OR 2(E)                                 [ ]
______________________________________________________________________________

    6      CITIZENSHIP OR PLACE OR ORGANIZATION

           United States citizen
_______________________________________________________________________________
               |     |
  NUMBER OF    |  7  |   SOLE VOTING POWER
   SHARES      |     |
BENEFICIALLY   |_____|________________________________________________________
  OWNED BY     |     |
   EACH        |  8  |   SHARED VOTING POWER
 REPORTING     |     |       360,600 shares
PERSON WITH    |_____|________________________________________________________
               |     |
               |  9  |   SOLE DISPOSITIVE POWER
               |     |
               |_____|________________________________________________________
               |     |
               | 10  |   SHARED DISPOSITIVE POWER
               |     |       360,600 shares
_______________|_____|_________________________________________________________

   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          360,600 shares
______________________________________________________________________________

   12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
          EXCLUDES CERTAIN SHARES*                                        [ ]
______________________________________________________________________________

   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                9.93%
______________________________________________________________________________

   14     TYPE OF REPORTING PERSON
                IN
_____________________________________________________________________________








<PAGE>

_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                    Page 3 of 11
_______________________________________________________________________________

    1      NAME OF REPORTING PERSON
           S.S OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                Matthew N. Hulsizer
______________________________________________________________________________

    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*    (a)  [x]
                                                                (b)  [ ]
______________________________________________________________________________

    3      SEC USE ONLY
______________________________________________________________________________

    4      SOURCE OF FUNDS*

           WC
______________________________________________________________________________

    5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
           PURSUANT TO ITEMS 2(d) OR 2(E)                                 [ ]
______________________________________________________________________________

    6      CITIZENSHIP OR PLACE OR ORGANIZATION

           United States citizen
_______________________________________________________________________________
               |     |
  NUMBER OF    |  7  |   SOLE VOTING POWER
   SHARES      |     |
BENEFICIALLY   |_____|________________________________________________________
  OWNED BY     |     |
   EACH        |  8  |   SHARED VOTING POWER
 REPORTING     |     |       360,600 shares
PERSON WITH    |_____|________________________________________________________
               |     |
               |  9  |   SOLE DISPOSITIVE POWER
               |     |
               |_____|________________________________________________________
               |     |
               | 10  |   SHARED DISPOSITIVE POWER
               |     |       360,600 shares
_______________|_____|_________________________________________________________

   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          360,600 shares
______________________________________________________________________________

   12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
          EXCLUDES CERTAIN SHARES*                                        [ ]
______________________________________________________________________________

   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                9.93%
______________________________________________________________________________

   14     TYPE OF REPORTING PERSON
                IN
_____________________________________________________________________________




<PAGE>

_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                    Page 4 of 11
_______________________________________________________________________________

    1      NAME OF REPORTING PERSON
           S.S OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                PEAK6 Capital Management, LLC
______________________________________________________________________________

    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*    (a)  [x]
                                                                (b)  [ ]
______________________________________________________________________________

    3      SEC USE ONLY
______________________________________________________________________________

    4      SOURCE OF FUNDS*

           WC
______________________________________________________________________________

    5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
           PURSUANT TO ITEMS 2(d) OR 2(E)                                 [ ]
______________________________________________________________________________

    6      CITIZENSHIP OR PLACE OR ORGANIZATION

           Delaware
_______________________________________________________________________________
               |     |
  NUMBER OF    |  7  |   SOLE VOTING POWER
   SHARES      |     |       360,600 shares
BENEFICIALLY   |_____|________________________________________________________
  OWNED BY     |     |
   EACH        |  8  |   SHARED VOTING POWER
 REPORTING     |     |
PERSON WITH    |_____|________________________________________________________
               |     |
               |  9  |   SOLE DISPOSITIVE POWER
               |     |       360,600 shares
               |_____|________________________________________________________
               |     |
               | 10  |   SHARED DISPOSITIVE POWER
               |     |
_______________|_____|_________________________________________________________

   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          360,600 shares
______________________________________________________________________________

   12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
          EXCLUDES CERTAIN SHARES*                                        [ ]
______________________________________________________________________________

   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                9.93%
______________________________________________________________________________

   14     TYPE OF REPORTING PERSON
                BD
_____________________________________________________________________________







<PAGE>

_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                    Page 5 of 11
_______________________________________________________________________________

    1      NAME OF REPORTING PERSON
           S.S OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                PEAK6 Investments, L.P.
______________________________________________________________________________

    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*    (a)  [x]
                                                                (b)  [ ]
______________________________________________________________________________

    3      SEC USE ONLY
______________________________________________________________________________

    4      SOURCE OF FUNDS*
           WC
______________________________________________________________________________

    5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
           PURSUANT TO ITEMS 2(d) OR 2(E)                                 [ ]
______________________________________________________________________________

    6      CITIZENSHIP OR PLACE OR ORGANIZATION

           Delaware
_______________________________________________________________________________
               |     |
  NUMBER OF    |  7  |   SOLE VOTING POWER
   SHARES      |     |
BENEFICIALLY   |_____|________________________________________________________
  OWNED BY     |     |
   EACH        |  8  |   SHARED VOTING POWER
 REPORTING     |     |       360,600 shares
PERSON WITH    |_____|________________________________________________________
               |     |
               |  9  |   SOLE DISPOSITIVE POWER
               |     |
               |_____|________________________________________________________
               |     |
               | 10  |   SHARED DISPOSITIVE POWER
               |     |       360,600 shares
_______________|_____|_________________________________________________________

   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          360,600 shares
______________________________________________________________________________

   12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
          EXCLUDES CERTAIN SHARES*                                        [ ]
______________________________________________________________________________

   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                9.93%
______________________________________________________________________________

   14     TYPE OF REPORTING PERSON
          PN
_____________________________________________________________________________




<PAGE>

_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                    Page 6 of 11
_______________________________________________________________________________

    1      NAME OF REPORTING PERSON
           S.S OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                PEAK6, LLC
______________________________________________________________________________

    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*    (a)  [x]
                                                                (b)  [ ]
______________________________________________________________________________

    3      SEC USE ONLY
______________________________________________________________________________

    4      SOURCE OF FUNDS*

           WC
______________________________________________________________________________

    5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
           PURSUANT TO ITEMS 2(d) OR 2(E)                                 [ ]
______________________________________________________________________________

    6      CITIZENSHIP OR PLACE OR ORGANIZATION

           Delaware
_______________________________________________________________________________
               |     |
  NUMBER OF    |  7  |   SOLE VOTING POWER
   SHARES      |     |
BENEFICIALLY   |_____|________________________________________________________
  OWNED BY     |     |
   EACH        |  8  |   SHARED VOTING POWER
 REPORTING     |     |       360,600 shares
PERSON WITH    |_____|________________________________________________________
               |     |
               |  9  |   SOLE DISPOSITIVE POWER
               |     |
               |_____|________________________________________________________
               |     |
               | 10  |   SHARED DISPOSITIVE POWER
               |     |       360,600 shares
_______________|_____|_________________________________________________________

   11     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          360,600 shares
______________________________________________________________________________

   12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
          EXCLUDES CERTAIN SHARES*                                        [ ]
______________________________________________________________________________

   13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          9.93%
______________________________________________________________________________

   14     TYPE OF REPORTING PERSON
          OO
_____________________________________________________________________________

<PAGE>
_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                    Page 7 of 11
_______________________________________________________________________________



                                 SCHEDULE 13-D/A
                               Amendment Number 1
                              I Sector Corporation
                Filed by PEAK6 Capital Management, LLC ("PEAK6"),
               PEAK6 Investments, L.P. ("LP"), PEAK6, LLC ("LLC"),
     Jennifer J. Makowiec ("Makowiec"), and Matthew N. Hulsizer ("Hulsizer")


Items 3-5 Inclusive for PEAK6:

Item 3.  Source and Amount of Funds or Other Considerations:

         All acquisitions of the common stock of the Issuer were acquired by
         PEAK6 using working capital funds.

Item 4.  Purpose of Transaction:

         Investment purposes. PEAK6 does have an intent to acquire additional
         securities of the Issuer if such additional securities become available
         at a price PEAK6 considers reasonable.

Item 5.  Interest in Securities of the Issuer.

         (a)      PEAK6 owns 360,600 shares of Issuer directly, which is 9.93%
                  of the outstanding common stock of Issuer.

         (b)      PEAK6 has sole voting power and sole dispositive power with
                  respect to such 360,600 shares of common stock of Issuer.

         (c)      In the past sixty days, PEAK6 has made the following open
                  market transactions in the Issuer's stock, all effectuated in
                  their own account located in Chicago, Illinois:

         Sales
         DATE - 2002             # OF SHARES               SHARE PRICE
         -----------             -----------               -----------

         May 16                    1,000                      $1.9
         May 16                    3,000                      $1.95
         May 16                      100                      $1.95
         May 16                      900                      $1.95
         May 16                    1,000                      $1.95
         May 17                      400                      $2.00
         May 17                    2,000                      $2.15
         May 17                    1,000                      $2.15
         May 17                    2,000                      $2.15
         June 7                      500                      $1.6
         June 19                     900                      $1.95
         June 19                     400                      $1.95
         June 19                   1,100                      $1.95


<PAGE>
_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                    Page 8 of 11
_______________________________________________________________________________


Items 3-5 Inclusive for the LP.

Item 3.  Source and Amount of Funds or Other Considerations.

         The LP indirectly owns the 360,600 shares of Issuer owned by PEAK6 by
         virtue of directly owning 100.00% of the membership interests of PEAK6
         and being the managing member of PEAK6. See PEAK6's response to Item 3
         herein.

Item 4.  Purpose of Transaction.

         The LP acquired its shares of common stock of Issuer for the same
         purposes as PEAK6. See PEAK6's response to Item 4 herein.

Item 5.  Interest in Securities of the Issuer.

         (a)      By virtue of owning 100.00% of the outstanding membership
                  interests of PEAK6, the LP beneficially owns the 360,600
                  shares of common stock of Issuer owned by PEAK6, which is
                  9.93% of the outstanding shares of Issuer.

         (b)      By virtue of owning 100.00% of the outstanding membership
                  interests of PEAK6, the LP has shared voting power and shared
                  dispositive power with respect to the 360,600 shares of common
                  stock of Issuer owned by PEAK6.

         (c)      See PEAK6's response to Item 5(c) herein.

Items 3-5 Inclusive for the LLC.

Item 3.  Source and Amount of Funds or Other Considerations.

         The LLC indirectly owns the 360,600 shares of Issuer owned by PEAK6 by
         virtue of directly owning 82% of the LP and being the general partner
         of the LP. See PEAK6's response to Item 3 herein.

Item 4.  Purpose of Transaction.

         The LLC acquired its shares of common stock of Issuer for the same
         purposes as PEAK6. See PEAK6's response to Item 4 herein.

Item 5.  Interest in Securities of the Issuer.

         (a)      By virtue of owning 82% of the LP, and all votes of the LP,
                  the LLC beneficially controls the 360,600 shares of common
                  stock of Issuer owned by PEAK6, which is 9.93% of the
                  outstanding shares of Issuer.

         (b)      By virtue of owning 82% of the LP, the LLC has shared voting
                  power and shared dispositive power with respect to the 360,600
                  shares of common stock of Issuer owned by PEAK6.

         (c)      See PEAK6's response to Item 5(c) herein.


<PAGE>
_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                    Page 9 of 11
_______________________________________________________________________________



Items 3-5 Inclusive for Makowiec.

Item 3.  Source and Amount of Other Considerations.

         Makowiec is a managing member of the LLC. See PEAK6's and LP's
         responses to Item 3 herein.

Item 4.  Purpose of Transaction.

         Makowiec acquired her shares of common stock of Issuer for the same
         purposes as PEAK6. See response of PEAK6 to Item 4 herein.

Item 5.  Interest in Securities of the Issuer.

         (a)      By virtue of being a managing member of LLC, Makowiec
                  beneficially controls the 360,600 shares of common stock of
                  Issuer owned by PEAK6. The LLC is the general partner of the
                  LP, which owns 100.00% of the membership interests of PEAK6.

         (b)      By virtue of being a managing member of the LLC, Makowiec has
                  shared voting power and shared dispositive power with respect
                  to the 360,600 shares of common stock of Issuer owned by
                  PEAK6.

Items 3-5 Inclusive for Hulsizer.

Item 3.  Sources and Amount of Funds or Other Consideration.

         Hulsizer is a managing member of the LLC. See responses of PEAK6 to
         Item 3 herein.

Item 4.  Purpose of the Transaction.

         Hulsizer acquired the shares of common stock of Issuer for the same
         purposes as PEAK6. See response of PEAK6 to Item 4 herein.

Item 5.  Interest in Securities of the Issuer.

         (a)      By virtue of being a managing member of the LLC, Hulsizer
                  beneficially controls the 360,600 shares of common stock of
                  Issuer owned by PEAK6. The LLC is the general partner of the
                  LP, which owns 100.00% of PEAK6.

         (b)      By virtue of being a managing member of the LLC, Hulsizer has
                  shared voting power and shared dispositive power with respect
                  to the 360,600 shares of common stock of Issuer owned by
                  PEAK6.

         (c)      See PEAK6's response to Item 5(c) herein.


                  A joint filing statement is filed as an exhibit to this
Schedule 13D/A.


<PAGE>
_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                   Page 10 of 11
_______________________________________________________________________________




Signatures.

         After reasonable inquiry and to the best of our knowledge and belief,
and undersigned certify that the information set forth in this statement is
true.

July 9, 2002

                                         PEAK6 CAPITAL MANAGEMENT, LLC


                                         By: PEAK6 Investments, L.P., its
                                             managing member

                                         By: PEAK6, LLC, its general partner

                                         By:   /s/ Jennifer J. Makowiec
                                            -------------------------------
                                                   Jennifer J. Makowiec
                                                   Managing Member

                                         By:  /s/ Matthew N. Hulsizer
                                            --------------------------------
                                                  Matthew N. Hulsizer
                                                  Managing Member

                                         PEAK6 INVESTMENTS, L.P.

                                         By: PEAK6, LLC, its general partner

                                         By:  /s/ Jennifer J. Makowiec
                                            -------------------------------
                                                  Jennifer J. Makowiec
                                                  Managing Member

                                         By:  /s/ Matthew N. Hulsizer
                                            --------------------------------
                                                  Matthew N. Hulsizer
                                                  Managing Member


                                         PEAK6, LLC

                                         By:  /s/ Jennifer J. Makowiec
                                            -------------------------------
                                                  Jennifer J. Makowiec
                                                  Managing Member

                                         By:  /s/ Matthew N. Hulsizer
                                            --------------------------------
                                                  Matthew N. Hulsizer
                                                  Managing Member


                                         /s/ Jennifer J. Makowiec
                                         -----------------------------------
                                         Jennifer J. Makowiec


                                         /s/ Matthew N. Hulsizer
                                         -----------------------------------
                                         Matthew N. Hulsizer


<PAGE>
_______________________________________________________________________________

CUSIP No.  45031W 10 7             SCHEDULE 13D                   Page 11 of 11
_______________________________________________________________________________



                            EXHIBIT TO SCHEDULE 13D/A
                               AMENDMENT NUMBER 3
                                       OF
                    JENNIFER J. MAKOWIEC, MATTHEW N. HULSIZER
                    PEAK6, LLC, PEAK6 CAPITAL MANAGEMENT, LLC
                           AND PEAK6 INVESTMENTS, L.P.

                             JOINT FILING AGREEMENT

         PEAK6 Capital Management, LLC ("PEAK6"), PEAK6 Investments, L.P.
("LP"), PEAK6, LLC ("LLC"), Jennifer J. Makowiec ("Makowiec"), and Matthew N.
Hulsizer ("Hulsizer") hereby agree that the Schedule 13D (as amended to date) to
which this statement is attached is filed on behalf of PEAK6, the LP, the LLC,
Makowiec, and Hulsizer, and that any amendments to this Schedule 13D may be
filed on behalf of PEAK6, the LP, the LLC, Makowiec and Hulsizer.

                                    PEAK6 CAPITAL MANAGEMENT, LLC

                                    By: PEAK6 INVESTMENTS, L.P.,
                                        its managing member

                                    By: PEAK6, LLC, its general partner

                                    By:  /s/ Jennifer J. Makowiec
                                       -------------------------------
                                             Jennifer J. Makowiec
                                             Managing Member

                                    By:  /s/ Matthew N. Hulsizer
                                       --------------------------------
                                             Matthew N. Hulsizer
                                             Managing Member

                                    PEAK6 INVESTMENTS, L.P.

                                    By: PEAK6, LLC, its general partner

                                    By:  /s/ Jennifer J. Makowiec
                                       -------------------------------
                                             Jennifer J. Makowiec
                                             Managing Member

                                    By:  /s/ Matthew N. Hulsizer
                                       --------------------------------
                                             Matthew N. Hulsizer
                                             Managing Member

                                    PEAK6, LLC

                                    By:  /s/ Jennifer J. Makowiec
                                       -------------------------------
                                             Jennifer J. Makowiec
                                             Managing Member

                                    By:  /s/ Matthew N. Hulsizer
                                       --------------------------------
                                             Matthew N. Hulsizer
                                             Managing Member

                                    /s/ Jennifer J. Makowiec
                                    -----------------------------------
                                    Jennifer J. Makowiec

                                    /s/ Matthew N. Hulsizer
                                    -----------------------------------
                                    Matthew N. Hulsizer



</TEXT>
</DOCUMENT>