Its too bad there aren't more interesting options for mice (at least interesting ones that work well) I picked up an mx 518 yesterday because my Roccat Kone just isn't tracking well. The Kone looked pretty sweet, but I cannot stand having the pointer twitch. I though about getting one of the Cyborg RAT mice, which look pretty customizable, but I think the look is over the top, and the 518 is pretty much gauranteed to work for a long time.