0000899171-03-000052 4 2 20030521 20030523 WELLINGTON SUSAN D 0001215341 4 34 000-21796 03716960 426 LINDEN WINNETTA IL 60093 8474656000 CDW COMPUTER CENTERS INC 0000899171 5961 363310735 IL 1231 200 N MILWAUKEE AVE VERNON HILLS IL 60061 8474656000 200 N MILWAUKEE AVE VERNON HILLS IL 60061 4 1 edgar.xml PRIMARY DOCUMENT EX-24 3 attach_2.txt