Exhibit 23.1


CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

We have issued our report dated February 27, 2002, except for the second
and third paragraphs of Note N, as to which the date is April 25, 2002, on
the combined balance sheets of Comark, Inc. and Affiliates as of December
29, 2001 and December 31, 2000, and the related combined statements of
income, retained earnings, and cash flows of Comark, Inc. and Affiliates
for the three years in the period ended December 29, 2001.  We hereby
consent to the inclusion of our report in the Form 8-K/A, Amendment No. 1
to Form 8-K of Insight Enterprises, Inc. and to its incorporation by
reference into their registration statements (No. 333-42684, No.
333-42686, No. 33-96286, No. 33-96280, No. 33-03158 and No. 333-69113) on
Form S-8 and (No. 333-14331, No. 333-16655 and No. 333-63379) on Form S-3.


                                    /s/ GRANT THORNTON LLP

Chicago, Illinois
July 8, 2002