0001157523-07-000650 8-K 2 20070126 2.02 9.01 20070126 20070126 CDW CORP 0000899171 5961 363310735 IL 1231 8-K 34 000-21796 07554572 200 N MILWAUKEE AVE VERNON HILLS IL 60061 8474656000 200 N MILWAUKEE AVE VERNON HILLS IL 60061 CDW COMPUTER CENTERS INC 19930322 8-K 1 a5319458.txt CDW CORPORATION 8-K EX-99 2 a5319458ex99.txt EXHIBIT 99