im going to be getting a mac mini for my ent center. (im in the 3rd floor attic of the house along with the router.) When I do ill be moving the Apple TV down to the first floor. the wifi is ok down there but I had trouble streaming videos just a room over on the apple tv over reg b/g wireless. So im thinking about getting the airport extreme. I usually get about 10mbps over wireless now will N be significantly faster? and how good is the range?