0000899171-03-000026 4/A 1 20020228 20030328 EDWARDSON JOHN A 0001017973 DIRECTOR 4/A P O BOX 66100 WHQLD CHICAGO IL 60666 8477004000 P O BOX 66100-WHQLD CHICAGO IL 60666 CDW COMPUTER CENTERS INC 0000899171 5961 363310735 IL 1231 4/A 34 000-21796 03624863 200 N MILWAUKEE AVE VERNON HILLS IL 60061 8474656000 200 N MILWAUKEE AVE VERNON HILLS IL 60061 4/A 1 form_4-jae032803amend.htm JOHN EDWARDSON AMENDED FORM 4 FOR THE 2002 GRANT