I switched to a trackball a couple of months ago. I own the Logitech Cordless TrackMan Wheel: http://www.logitech.com/index.cfm/mice_pointers/trackballs/devices

I switched to a trackball a couple of months ago. I own the Logitech Cordless TrackMan Wheel: http://www.logitech.com/index.cfm/mice_pointers/trackballs/devices/159&cl=us,en http://www.logitech.com/index.cfm/mice_pointers/trackballs/d... It's a pretty awesome piece of hardware, big and very comfortable and with a nice touch. It uses an optical sensor so almost no cleaning is needed. Being cordless, the battery is not a problem as you're not supposed to move it around.