I"m building a new home with home theater. Any and all information is greatly appreciated. I've decided to go with Epson 8500 UB. It will be dark walls, dark carpet, controlled lighting, no windows. Room dimensions are 17' Wide, 21 Feet long, and floor to ceiling of about 20 feet. Throw distance for the projector will be 20 feet. Viewing distance will be 15 - 17 feet, with secondary viewing from Second Floor balcony. I would like information on what type of screen, what size of screen, etc. I'm hoping to do a screen size of 15' X 8.5'. Any suggestions? Please help me.