I have one of these mice and I love it. Instead of a scrollwheel, it has a little "joystick" just behind the middle button. And what's more, it lights up blue!
Anyway, I keep having to set up my xorg.conf file for it, and I always have to puzzle out the correct configuration. (Yes my hard drive failed and I'm having to rebuild my whole machine.) Well, here it is:
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ExplorerPS/2"
Option "Emulate3Buttons" "true"
EndSection
The mouse is plugged into the USB port. ZAxisMapping doesn't seem to be necessary, or to do anything useful.
The mouse "wheel" still scrolls a little too fast for my liking. If you are brave, you could try this patch to Linux's mousedev module.
firetree.net