I can recommend the Deathadder too
Although I must say teh Mionix looked sweet also. After going a bit into the whole matter of mice, I have realized though that almost all mice I have had so far don't exactly fit my grip. I use a 3 finger on top grip with a mix between palm and claw.... :first:
Anywho, my problem is that my middle finger rests on the scroll wheel but when I palm grip, it is too far in the front. So I would basically need a mouse where the scroll wheel is kinda at the end of the mouse
Furthermore, if a mouse handed me a more or less fitting scroll wheel, it always had the 2 side buttons (front back) too far in the front, so I could effectively only reach the back-button...
I guess what I want to say is this: Don't care so much about performance and all that stuff, first of all go into a store and check which mouse feels most comfortable. If you are a bit clueless as to what feels comfortable (as I was when I bought the deathadder, still, not a bad choice at all), then go with your gut and watch your mousing behavior. Once u know what's important, repeat the process (touching mice in the store) and be happy