EXHIBIT 10(h)

                       FIRST AMENDMENT TO THE EMPLOYMENT
                     AND NON-COMPETITION AGREEMENT BETWEEN
                CDW COMPUTER CENTERS, INC. AND GREGORY C. ZEMAN


     This First Amendment to the Employment and  Non-Competition  Agreement (the
"Employment  Agreement") between CDW Computer Centers,  Inc. (the "Company") and
Gregory C. Zeman ("Mr. Zeman") is made effective as of January 28, 2001.

                                   WITNESSETH

     WHEREAS,  Mr. Zeman is  resigning  his position as President of the Company
and assuming a new position as Vice Chairman of the Company; and

     WHEREAS, the Company and Mr. Zeman desire to amend the Employment Agreement
to reflect the new position in which Mr. Zeman is employed.

     NOW THEREFORE,  the undersigned  parties mutually agree that the Employment
Agreement shall be amended as follows:

     The first paragraph of Section 1 is deleted in its entirety and replaced by
the following:

     1. AGREEMENT TO EMPLOY.
        -------------------
     THE  COMPANY  does hereby  employ THE  INDIVIDUAL  in the  capacity as Vice
Chairman and to perform such other executive functions as the Board of Directors
may from time to time  designate  on the terms and  conditions  hereinafter  set
forth.


         IN WITNESS WHEREOF, the parties hereto have executed this Amendment as
of the date set forth in the first paragraph above.


                                      CDW Computer Centers, Inc.



                                      By:     /s/ Michael P. Krasny
                                              ---------------------
                                      Name:   Michael P. Krasny
                                      Title:  Chairman of the Board

                                              /s/ Gregory C. Zeman
                                              ---------------------
                                              Gregory C. Zeman