I have a logitech bluetooth mouse that performs great, but only 2 buttons and the scroll wheel is the problem for gaming. The reason i want bluetooth, is i have a macbook pro, so I have bluetooth built in, thus meaning one less dongle to plug in/carry around/store/lose.
I'm using the Logitech MX Revolution right now, and I have to say, the performance of this mouse might make up for the usb dongle I have to keep track of.