I got a Razer Abyssus as I use my mouse left handed ( ambi-dextrous mouse ) which cost me about £30 or less, so I imagine $40-50, didn't want anything major but I thought I'd try out a Razer mouse and I can say it's really nice to use, I thought it could have just been the Razer hype but it is a solid product that works well and looks nice on your desktop whilst doing so. I can also change the DPI on my mouse on the fly with a switch underneath it. I wish the mouse wheel had a little more resistance and perhaps had more than the normal 3 buttons but regardless it has been serving me very nicely. Perhaps for probably $15 more you could get an even better one.
If you are not interested in Razer then get an intelli mouse, they're good enough.