Mouse?

So what kind of mice are you guys/gals using?
I've been at war over the Cyborg Rat MMO or the Razer Naga..

Recently decided on the Razer Naga, got the special Molten Edition on =) so far very very pleased with it. I play quite a few MMO's and the number pad on the mouse can be a god sent for multiple spell casts!

Anyone else have an opinion?