I got a logitech keyboard and a good 'ol microsoft optical mouse. While I don't know a good gaming mouse, the keyboard is a great one b/c of its flat design. Real easy to use for long periods of time and the keys are soft touch so they can quickly be used for games. Here's the link to the keyboard from newegg (the volume and track controls on it are also a nice feature).
These two are both very comfortable mice. Logitech also makes some very nice keyboard and mouse combos, which I've got. They run $50-$100. Try going to a store to test one out and see if you like it. The keyboard is the same one I've got, it's great!