Exhibit 1.1 FORM OF UNDERWRITING AGREEMENT 8,750,000 Shares CDW Computer Centers, Inc. Common Stock, $0.01 par value Morgan Stanley & Co. Incorporated William Blair & Company, L.L.C. Goldman, Sachs & Co. Robert W. Baird & Co. Incorporated c/o Morgan...Underwriting Agreement • June 26th, 2001 • CDW Computer Centers Inc • Retail-catalog & mail-order houses • New York
