WashU - reach with solid programs in Engineering and Business; very flexible as far as taking classes and majoring across schools
Lehigh (see above post)
Miami (OH) - very similar to lehigh in many respects; reputable Biz program and decent engineering; would probably be a safety
Wisconsin and Illinois - big schools; similar to Michigan but not as strong as Michigan overall; They might be cheaper, though, and are easier to get into. Illinois engineering is arguably as good or better than Michigan's
I agree with pierre; I think you can definitely find better safety schools if you look hard enough.