I use a logitech wireless laser mouse (usb), being that it's wireless I guess it's more like a hamster. I'm not sure what the model is but I recall it was kind of pricey. It's very comfortable, scroll wheel and 2 buttons. Think it needs a good cleaning though as I recently got a severe 3rd degree burn on the side of my hand and so my hand was leaking plasma for about a week... OT but my hand became like an organic watergun.

Anyway, the hand's much better now but my poor mouse probably looks like a glazed donut.