0001157523-07-003931 8-K 2 20070424 2.02 9.01 20070424 20070424 CDW CORP 0000899171 5961 363310735 IL 1231 8-K 34 000-21796 07783039 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 a5384740.txt CDW CORPORATION 8-K EX-99 2 a5384740ex99.txt EXHIBIT 99