We have a lot of windows, but I am going to put it up in the loft which is open on one side and has a window on the other ... I'm going to get blackout curtains for both, so I think i can make it work.... we'll see

on the screen side, I am going to get the projector, get it positioned properly, then buy a screen that matches the largest size I can get to where I'm still happy with the picture quality/brightness.

ms