Can anyone share advice on front projection screens? I bought the Sanyo PLV-70 and need a good screen for it. Something fixed, I don't mind making a frame for it or I can buy it with a frame, doesn't really matter. I'm mostly concerned with what screen material is most appropriate for me and where to buy it. Specs, 2200 lumens, in a room with less than perfect light control. But I don't want a super high gain screen since most of my movie watching will be at night and I don't want to be blinded. But I'd like a little help for early evening watching when there is still some ambient light present. Screen size at least 120" 16:9 give or take, I have to mount the projector and find out how big I can get it first, but I'll know that next week. Thank you!