I have had my Sanyo Z1 for 2 weeks now and am projecting onto a magnolia painted wall.I am getting a 110"/120" diagonal depending on zoom and I am blown away with the image I am getting.My room can be virtually totaly blacked out so I am getting really good colour saturation and contrast and pretty reasonable blacks. My question is, is it worth the expense and hassle in buying and fixing a screen to the wall/ceiling and also the asthetics of having a 9ft wide screen hanging from the ceiling when not in use and having to pull it down everytime i want to watch a movie( I can't aford an electric screen).Also these screens can suffer damage in use(walls don't). Have you guys who have screens ever projected onto a white/light coloured wall if so how much better is your screen. I am prepared to buy a screen as long as I am going to see a decent improvement over my wall,I can only spend around £250/300 and I want a 106" diagonal screen for that. What do you guys think?