Nate, you're "play area" (sounds very kiddish lol) looks very nice! It's like your own little cabin... in an attic type scenerio.
What I have goin' is in my basement: Lights out. Windows covered. 100" projection screen with surround sound... not quite sure how it'll work. I haven't heard the greatest things for projection screens (altough it does seem to work well for my PS2, Gamecube, and Xbox.) Around that I have seats in a horseshoe shape. Total seating can fit appx. a total of 13 - 16 people around it, if we don't cram people on couches and pull up a few extra chairs. AND if you get bored with the Wii (yeah right!) you can go play some ping pong, bust it out the drum set, play some pinball, go on the computer, OR get some glass bottled pop out of the vintage Pepsi machine that is guarded by our cardboard cutout of Austin Powers.
I'll try to put some pics on here of it.