Newegg has the Corsair Vengeance M90 15-Button USB Laser MMO/RTS Mouse for $60 - $10 off with coupon code EMCNJNF84
[Exp 1/6] - $20 rebate
[Exp 1/6] = $30
with free shipping. Goes for $54+ elsewhere. Features 5700dpi Avago ADNS-9500 LaserStream sensor, 15 fully programmable buttons with nine macro keys, metal chassis design, and tracking up to 165" per second.