I am looking to buy a new all-round projector. The main use for my projector will be for watching films. I'm not too bothered about 3D or Full-HD but 720 capability would be a must. Pretty standard till now but here's where my problems start. First, there is ambient light in some of the rooms I need to use my projector in so I was thinking a 3000 - 3500 luminosity would be good. However, I really want to be able to use it in a darkened room too. Second, I am a teacher and have private students, so I'd also like a machine comfortable with showing documents and slides etc from the PC. Finally, I would like the capability of a machine that handles my PS3 well although this is not the most important thing. Unfortunately my budget is rather limited. I am looking for the most reliable and best possible machine for my money - if it has extras such as 3D, so be it, but image quality, quality playing films and the ability to play in light and dark is far more important for me. I have seen a few machines I was comsidering and would value your opinions on these and any others. ACER P1303W OPTOMA GT750 Thanks for the help.