EXHIBIT 23

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the incorporation by
reference of our reports dated April 20, 2001, included in or incorporated by
reference in this Form 10-K, into the Company's previously filed Registration
Statements on Form S-8 (No. 33-00067, 33-40610, 33-41310, 33-57648, 33-81064,
333-15679, 333-15677, 333-33885, 333-33897 and 333-88387).


                                       /s/  ARTHUR ANDERSEN LLP

                                            ARTHUR ANDERSEN LLP


Chicago, Illinois
May 25, 2001