I actually like where Steam is going. It gives you a central place for all your Valve games where you can switch through games quickly, find Friends (hopefully this will be more reliable with the new HL2 version of Steam) and use a really good server browser. The thing about Steam is that you...
A wireless mouse is not only completely unnecessary, but it has a small amount of lag in its movement (very noticeable in FPS games). I don't see why you'd want one of those battery-sucking mofos.
I have the Logitech MX500
How would we know?
BTW, I don't think there would be many wall mounts, since that would be pretty stupid. Not everyone in the city wears ahazard suit, you know.