Not to piss on your ebay win dude, but moto has the best solution.
What i didn't like about that mouse you got is you have to clean the pad all the time or it doesn't work right, and you have to keep the mouse on that dang pad or it won't work at all.
A ps2 interface with a modern optical mouse is better than you'll ever want. A good modern optical mouse works on glass, on your pant leg, a raw table surface, carpet, what ever. Never gets junk on a roller, etc.