Hi, I'm thinking of buying a video projector but don't know much about em. I like the idea of DLP because of the better contrasts and darked blacks... but the 'rainbow' colour flashes are a worry. One of my friends recently got an Optoma H30. I think this projector would be perfect but for one problem... I really need one that has 4-way keystone correction. I think the picture this machine projects is great, and I didn't really notice any 'rainbowing'. Can anyone recommend a machine which has this kind of image quality AND 4-way keystone correction (and is available on the UK market for up to £2500)? Many thanks in advance.