Ok, so when I built my new system (see gaming system in signature) I had mentioned that I was looking at the Microsoft Desktop Elite for Bluetooth. Many of you had made comments about the bluetooth mice not being good for gaming. Well, you were right. I ended up gettting another mouse. I got the Logitech MX518 gaming mouse. I love it. I like being able to adjust the tracking speed on the fly while gaming. I was dead set against going with a wired mouse, but I must say, that this logitech is awesome. I should have listened to you all. I do still love the keyboard though. It works great. Anyway jus thought I would pass that along.