0000950134-07-012558 DEFA14A 6 20070530 20070530 20070530 CDW CORP 0000899171 5961 363310735 IL 1231 DEFA14A 34 000-21796 07885439 200 N MILWAUKEE AVE VERNON HILLS IL 60061 8474656000 200 N MILWAUKEE AVE VERNON HILLS IL 60061 CDW COMPUTER CENTERS INC 19930322 DEFA14A 1 c15651e8vk.htm CURRENT REPORT EX-99.1 2 c15651exv99w1.htm PRESS RELEASE EX-99.2 3 c15651exv99w2.htm E-MAIL TO COWORKERS EX-99.3 4 c15651exv99w3.htm COWORKER FAQ EX-99.4 5 c15651exv99w4.htm MANAGER TALKING POINTS GRAPHIC 6 c15651c1565100.gif GRAPHIC