I know, I know, I should buy a screen and not project the image onto the wall, but for right now ($$) it's not an option.... I will be ordering my PannyAE700 on Monday, and throwing about 17' giving me about 110", sitting 15-17' away, with virtually 0 ambient light. Now, I have read (and maybe I'm wrong) that grey screens can be better than white in some cases and prodcue a cleaner image. So I am thinking about painting the wall a light grey with an eggshell finish. I thought about semi-gloss, but thought that might be too reflective and cause the image to look washed out. What do you think?