Jamie from Nashville, TN here... here is my theater.
100" 16:9 screen, Optoma HD20 projector, Mission front speakers, JBL center and sub, Elan rear speakers, PS3 for bluray, Sony for receiver.
Acoustic treatments throughout built by me (16 total panels that are shaped to match ceiling/wall angles).
We built the house, so before they sheetrocked, I was able to run all the speaker wires, outlets.
Room is great for movies and sporting events.