I just got a mini the other day. Great little machine so far, I'm pretty happy with it. Going back and forth between my PC and the mini shows quite a difference with the mouse acceleration and tracking though. In OS X, my mouse feels very sluggish and inaccurate as opposed to in XP. Yes, I did read up on and tried USB Overdrive and it made it a bit better but still not quite as good. Maybe it's because I'm using a wireless mouse, I don't know. How do you guys have your mice set up?