option one: you are a money bitch...
if you prefer a huge mouse, get a logitech.
if you prefer medium get a razer. (all except krait or salmosa)
option two: you are not a money bitch...
if you are fine with 3 buttons, a smaller mouse that is very lightweight and cheap but still has a great sensor (3G infrared, 800/1800 dpi, 250/500/1000hz buttons on underside of mouse...)... a razer salmosa is about 29 yuros...
at least in Yurope. =P