Anyone know of any decent gaming mice that have the same shape as those shitty logitech mice you get with new computers? Talking about these:

http://img696.imageshack.us/img696/4002/mbt96abulkunit.jpg

I've like the shape, probably because I've used them so much at school and work. Only problem is it's tracking gives out if I move it too fast. I want to know if I'll have to try and mod one with a better sensor or if there is a mouse that is similar that I can just buy.