I got screwed out of a 250rd value pack of Rem UMC 9mm at Dunham's near Lapeer - some douche cut ahead of me by grabbing an associate while I was waiting patiently at the counter, and I didn't feel like arguing. They also had a 40 S&W value pack. I saw .38 Special quite a few places.
William's Gun Sight had some 9mm last time I was in there.
Peter's Indoor Gun Range has some 9mm, but will only sell if you purchase range time, and the price is inflated...
A lot of other shops have it, but will only sell you 1 50rd box, and may include range time as a pre-req.
Looks to me like ammo's starting to come around a little bit. Try to avoid paying those who are going to the extreme end of gouging - I've seen people asking for $.50/rd for 9mm range ammo (WWB, UMC). It's available for less, you just have to be diligent. I managed to get some 9mm for $.34/rd last night.