I've heard some good things about that mouse, but then I think that most but I think most optical mice are about the same. I would go with one that feels good in your hands and doesn't cost an outrageous amount of money. Don't worry about a mouse pad, I haven't used one since I bought my optical mouse a couple of years ago.
I went into a store not too long back and tried the logitech mx range and found them to fit in my hand nicely.
I got my mx518 the other day and plugged it into a free usb port.
The difference is astonishing. This mouse quite literally GLIDES across the mousepad. Infact, all it took was the little tension in the hanging mouse cord it pull it along. The buttons are nicely placed.
So I load up ut2004 and I have to
decrease the dpi to 800 because it was too sensitive at 1600 (at least intially til i get used to it. When they say it picks up every twitch they ain't kidding!
I definately notice a big difference from my old 400 dpi packard bell optical mouse.