I've heard from a couple of people that are beta testing the Mac BB Desktop Manager and they all rave about it. Smooth and stable, and it gives you all the features of the Windows client. One guy said that updating the OS was hit-or-miss, but other than that (and that's a BIG one), it's great. Personally, I'm on the verge of losing sleep over this piece of software. Between that and Snow Leopard I can hardly stand it!