Grey is better for rooms with ambient light, but you loose gain with grey screens. There are a couple positive gain grey screens, one being Stewart’s FireHawk. There is a silver screen that’s high gain as well, but they’re expensive as hell ($5000). AVS sells Stewart at good prices. You might be surprised. If you have a totally light controlled room, then stick with white. When going with a 2.35 screen, you want to size it off of screen height. You can get away with a wider screen, but if you go too high, you will have a lot of eye strain.

Dean – have you considered the JVC RS-10?