What is the Best Gaming Mouse?

I've been using an awful $10 Wal-Mart mouse for the entire season and feel like it's time for an upgrade. I'd like it to be less than $100. Seeing as I'm a college student I would like it to be somewhat durable because I just keep it in my backpack. Any and all recommendations are appreciated. Also this is my first time using the Boards, so I apologize in advance if this should be posted somewhere else.