Sounds like youve already made up your mind, just wanted to say that if you like gaming, the Logitech MX series are the best mice to get.
Old optical mice skipped, jumped, fritzed...basically everything you didnt want it to do. Thats because the dpi was way too low.
The dual optical was the next best, with a combined dpi of 800.
The Logitech MX series combined that 800 dpi into one optical laser.
I've been using mine for 16 months now, and its still as good as the day I bought it. The other nice thing about it is the back and forward buttons on the thumb side...its now very annoying when I surf the net with a different mouse. I NEED my BUTTONS!!!