I used to, and swore by it for games, but now I'm pretty sure I was full of it. Other than that, I enjoy the large Kensington trackballs (TurboMouse/Expert Mouse). However, the other reason I'm thinking about switching mice is because I have a Kensinton mouse right now and the scrollwheel isn't recognized by over half of the games I have. And that just sucks.

I am the Doctor, and THIS... is my SPOON!