Unfortunately I am computer illiterate, so i can not post a sketch. But while looking throught this site today I found almost the same design i am going for. Here is the link. http://forums.klipsch.com/forums/p/86400/870241.aspx#870241
The only differences would be that i my center channel will be below the screen instead of behind. The sub would be placed to the right of the center. But behind the speakers would be a room about 4' x 12'.