OK, my plan this year is a dedicated room, roughly 5.5m x 3.5m, total batcave with no windows. Now i'm leaning towards something like the Optoma HD83, but i'm also considering a curved screen, I will have the luxury of being able to use a fixed screen so curved makes sense, does anyone use one? I'm mainly wondering how they are with 3d active shutter stuff. Also looking at the curvatures with these and the standard seems to be something called 40ft curve, can anyone enlighten me with more details. I'm having the pj about 18ft from the screen so am hoping it will be ok with a 2.8m curved screen.