I have a gameroom that we are going to convert to a Home Theater room. The room is well suited, in general, in that it is fairly dark and long (30' x 15'). I am anticipating a ceiling mount projector, screen, two rows of theater chairs/recliners, etc. The second row will be on a riser - probably 12-14". 1. I am contemplating a screen as large as 150" and the first row of seats 11' away (unreclined head position). Sound OK? 2. To preserve space at the back of the room for...