Looks like you throw distance should be about right for the size of screen you are wanting. This thing is very bright. Should look nice outdoors. This projector is designed to be a multipurpose projector for movies, games, tv, outdoors, etc. I wouldn't sweat the color of your walls, etc in you room too much. Since it's not designed as a dedicated home theater projector, I don't feel those things are as crucial as if you were forking out $2000. I have a white drop ceiling with medium pine walls with semi gloss poly and I am quite happy with the picture. I don't even think about reflections and such. It basically throws up a nice, bright, decent image about anywhere. I would probably ceiling mount it as opposed to a shelf mount if you can imo. I used a cheap $15 one from monoprice and it worked quite well. Mine is mounted over my head and in eco mode with the iris off it is pretty quiet. Turn those on and the noise does increase though. If you read the projectorreviews.com review, he basically says that this is a great projector for those wanting a large picture with minimal hassle. It's great for family rooms, living rooms, dens, outdoors, etc where a controlled environment is not available. It will look much better than the 480p projectors you were considering. Epson's warranty is top notch and the initial cost and bulb life are great. I think you would be pleased. Just keep in mind that it's not a dedicated home theater projector so if you are a stickler about black levels and such, you may want to look elsewhere. I don't think you can find better performance for the money, though, and that is the thing to remember if you are on a budget. I would take it over an Optoma or Mits any day.