0000950137-06-005705 10-Q 6 20060331 20060510 20060510 CDW CORP 0000899171 5961 363310735 IL 1231 10-Q 34 000-21796 06825513 200 N MILWAUKEE AVE VERNON HILLS IL 60061 8474656000 200 N MILWAUKEE AVE VERNON HILLS IL 60061 CDW COMPUTER CENTERS INC 19930322 10-Q 1 c05127e10vq.htm FORM 10-Q EX-10.1 2 c05127exv10w1.htm DEFERRED COMPENSATION PLAN EX-31.1 3 c05127exv31w1.htm CERTIFICATION OF CEO PURSUANT TO RULE 13A-14(A) EX-31.2 4 c05127exv31w2.htm CERTIFICATION OF CFO PURSUANT TO RULE 13A-14(A) EX-32.1 5 c05127exv32w1.htm CERTIFICATION OF CEO PURSUANT TO 18 U.S.C. 1350 EX-32.2 6 c05127exv32w2.htm CERTIFICATION OF CFO PURSUANT TO 18 U.S.C. 1350