Is it neccesary to do only one shot of the room? If you can mix and match the shots you could come up with something interesting? Shots where the room is somewhat swamped by the light from the window mixed with those where the window is a mere feature? I can see it my minds eye but it's hard to convey, kind of using different possible aspects of the room to give a bit emontional depth. Sorry I'm rambling and to think I was in the Coldstream Guards!