I used to have a wonderful Microsoft Intellimouse 3.0 - it had excellent button layout, size, and AFAIK a great sensor on it. Unfortunately I think the right click button has worn out, so I'll need to replace it (if you think it can be repaired let me know that along with your replacement suggestion).
What I want in a mouse:
- two thumb buttons (forward/backward ideally)
- medium size
- smooth scrolling a plus
- sensor polling and sensitivity relatively high
- USB wired
- DPI switch button a plus
- no glued on "grips"
- if lit, white, green, or configurable lights are preferred
- scanner mouse would be neat - can it still be a good gaming mouse?
- easy to clean underside
- ideally less than $40