Re: Which Mouse?
Depends on what you're going to do.. if you're playing games, get the 510. I have the exact same mouse and it's great. Hopefully, you're right handed though. If you play a lot more music than games, the media play is excellent. The intellimouse is just facny and doesn't add up to what the other mice do. If you want looks, the intelli is ok,but for games, 510 or music go media. If you want both, go with the 510, because you still play music through your comp, etc. You can't better performance for your mouse through your comp.
Macbook Pro and Logitech z5500s. All you really need.