How is the mouse? I'm thinking of picking one up to replace my MX510. I like the feel and accuracy of my MX510, and I really don't mind the wire all that much, but I like the idea of a cordless mouse, but lag has always been a deterent from getting one. Let me know what you think about this mouse and whether it's worth the money ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)