I'm thinking about buying a projector, but don't know about SVGA, XGA, lumens, etc. I'd use it for watching films occassionally, but mostly for connecting to my pc/laptop for powerpoint presentations. This bit is important as most of the projector talk here is centred on watching DVDs. I am buying it for PC work and will only use it for watching DVDs because I have it. What should I look out for? Which ones are reasonably priced. I'm thinking about the Epson EMP-S1. Also, my brother repairs projectors and he wants to offer a free replacement whilst he takes the broken projector to repair, so ideally it should be a bit portable as he is paying for half of this. Thanks.