I have DIY Home theatre...
92 inch Grey Wolf screen with Optoma projector. It's a few years old, so it's only EdTV (waiting for the price of the 1080 projectors to come down). The room is only 20 feet long, so running a 5.1 surround an dit's not tuned for THX or anything like that. It's also the room where my DT is so the lights from the DT is annoying!