Exhibit 23

                    [Deloitte & Touche LLP Letterhead]

         CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

         We consent to the incorporation by reference in Registration
         Statement No. 333-137016 on Form S-8 of our report dated June 25,
         2007, appearing in this Annual Report on Form 11-K of the Missouri
         State Bank and Trust Company Retirement Savings Plan for the year
         ended December 31, 2006.


         /s/ DELOITTE & TOUCHE LLP


         Milwaukee, Wisconsin
         June 25, 2007