Well right now your only choice on that is the Microsoft Bluetooth mouse. I actually just got back from looking at it at CompUSA. It's an ok mouse, but I personally think the buttons feel a little cheap, and the two thumb buttons feel like they're too high up. It's probably fine for most people, but for my big hands it's no good. Another option is to wait for Logitech to ship their Bluetooth mouse, the MX 900, which they announced this last week. It's the same design as the MX 700, which uses Fast RF, so you can go to the store today and see how it fits your hand. The great thing about the Logitech mouse is that it will be rechargeable. No need to replace the batteries every three months. Logitech says the MX 900 should be in stores by the end of the year, so you'll have to wait a few months if you go that route.