About 2 years ago, I bought a Mad Catz RAT 7 mouse for like 85 or 90 bucks. I LOVE the feel of the mouse. I love the thumb and pinkie rests and the fact that it is adjustable to my hand. I have fairly large hands and it fits my hand very well. The functionality of the mouse is terrible, though. It will just cut out randomly where it won't register movement and I have to get up, reach around to the back of my computer, unplug it, and plug it back in. It also drifts the cursor down. This is part that is the most annoying to me. Messes me up playing games and trying to click on or highlight something. Unplugging and plugging back in sometimes fixes it but not every time. It is the best designed mouse I've ever used (and it looks very cool), but very disappointing to use.