If you come up further north near Traverse City there are some very nice courses in the area.
Hickory Hills: 24 holes in the woods, elavation changes, cement pads, nice signs, tough course bring your hiking boots and water. http://www.dgcoursereview.com/course.php?id=647#
Myles Kimmerly: 18 holes in beautiful woods, huge beech trees and maples rolling through hills, lots of rocks, nice signs, lovely natural setting, a true norther gem!
Boyne also has two new 18 hole courses that are supposed to be big and challenging
Petoskey has a 24 holer though I heard its very tough
If you ever come north send me a message I would love to show you around.
Also check this site out for courses through out michigan
The book is much nicer than the web page