0000950137-05-010986 S-8 POS 3 20050902 20050902 20050902 CDW CORP 0000899171 5961 363310735 IL 1231 S-8 POS 33 333-120260 051068562 200 N MILWAUKEE AVE VERNON HILLS IL 60061 8474656000 200 N MILWAUKEE AVE VERNON HILLS IL 60061 CDW COMPUTER CENTERS INC 19930322 S-8 POS 1 c98243sv8pos.htm POST-EFFECTIVE AMENDMENT TO REGISTRATION STATEMENT EX-5 2 c98243exv5.htm OPINION OF SIDLEY AUSTIN BROWN & WOOD LLP EX-23.1 3 c98243exv23w1.htm CONSENT OF PRICEWATERHOUSECOOPERS LLP