This equipment will be going into a theater room which will mainly be used for watching movies. I'll also use it for video games (XBox 360 and PC), and rarely for music/music videos.

Room size - 13x19x10
Receiver - Denon 3808CI (140w x 7)
Front - M60
Center - VP150
Surrounds/rear - QS8
Sub - EP500

I think the surrounds are probably a bit overkill, the QS4 would probably be enough, but for the price difference...might as well get the QS8s.

My main concern is the sub. Spec-wise there doesn't seem to be too much difference between the EP500 and EP600. Price-wise there is a big jump, which I assume is at least partially due to the larger cabinet and shipping costs. I want wall shaking LFE, I want to be concerned that mounting bracket for my 63" plasma isn't going to hold the tv to the wall. Will the EP500 do the job? or do I need to spend the money for the EP600? or should I go all out and get 2xEP500?

As this is my first attempt at a high quality system, I would appreciate your feedback on my audio choices.