The mouse is a Logitech G5. I used to have the G7, but the problems with it are horrendous. It has a weird blue grip on it, and 7 buttons not counting the sensitivity adjustment.
The only thing I need in a mouse is a real mouse wheel, and not just a one way trackball. It's like, okay, I want to go up ONE. ONE! *moves it forward* NO DON'T GO UP FOUR!
That's the only thing.