Hey Alvino If you can spare 60 bucks for a mouse than I would get a Razor, they look awesome and are the best gaming mice on the market, like 1600dpi! they are perfect for twitchy high strung FPS players like me
i dont know if you researched them , but they kick A$$
heres a link to the diamondback (comes in green or red)
http://www.razerzone.com/products/products_diamondback.php
BTW these mice totally PWN all logitech mice, even the mighty MX510.