Something else I love going on the site very soon: this mouse is small, but it fits comfortably in your hand. It has a scroll/tilt wheel, so you can scroll up and down or side-to-side. The laser (which IMHO is much better than optical and leaves trackballs in its dust) is fast and precise (I got it for doing graphics work), and the fact that it's wireless gives me a lot more freedom. It plugs in to a USB port with a tiny little receiver. And when you're done, the receiver stores in the bottom of the mouse, which also turns the mouse off so you don't have to remember to do it. If you're going to not be using your mouse for awhile, there is a button on the bottom to turn it off without having to remove the receiver from the computer. And it fits nicely into the Belkin Mouse Trap I mentioned in another post.