If you preferred wired mouse, the Logitech G5 is a step up. I have the G7 wireless and doesn't skip a beat. Some people say that there's a slight hesitation at times when using wireless mouse, but when I use it to play Doom 3, Quake 4, etc., I don't see it happening. Very smooth and very responsive. Newegg has the best deal so get it off of there. I went to Best Buy today and saw the same mouse (G7). Holy cow, they want $99!!!! I got mine for around $78 off Newegg.
Oh, here's the link for it:
Logitech G5 931376-0403 2-Tone 6 Buttons 1x Wheel USB Laser Mouse - Retail
Logitech G7 931375-0403 Black 6 Buttons 1x Wheel USB RF Laser Mouse - Retail
But at Best Buy, I had a chance to grip this mouse here:
Logitech MX Revolution 931689-0403 Black 7 Buttons 2x Wheels USB RF Laser Mouse - Retail
OMG, I almost had an orgasm. It feels like a part of your hand!!! SO comfortable.