I think I have decided to make the jump and get rear projector once I move into my new place. I am looking at an 'entry level' projector. I am about 99% sure that I will get the Sanyo PLV-Z1. I have done some research on building a screen. From what I have read I think I'll go with building a 1x4 wooden frame and using blackout cloth. I plan on painting the cloth by spraying it on instead of rolling it. My question is about the different colors people use. I see people using matte white, bright white, or gray. Does it depend on how bright you projector is?, the contrast ratio?, or both? What advantage does each color hold over the other. The Sanyo is rated at 700 lumens and I will be using it in a basement so I should be able to control the light very well. I cant afford a high dollar projector and I definintely want to get all I can out of what I can afford. I'm assume that a lot if it has to deal with personal perference. If any one can give me some advice on perhaps what to use, what has worked well for you, and what to avoid, I would really appreciate it.