Hi mate,
Welcome to the forums. Can only comment on the two projectors you have listed.
Firstly, there are many happy owners of both machines you mention here who may be better placed to advise you on what you require. However, here is some basic advice.
The 4805 is a DLP machine. DLP machines offer a lovely, smooth film like image. However, some users are suspect to something called the rainbow anomaly, which can cause irritation when watching a movie. Best described as a brief flash of colour, your eyes may or may not be drawn to it. Only extensive demo can establish if you are prone to the ‘rainbow effect’. Otherwise, the 4805 is a great budget DLP machine with smooth colours, loads of options and a great price.
The 700 is different technology. It has LCD panels and as such is not prone to the rainbow effect. However, LCD can also throw up the odd anomaly such as vertical banding, colour uniformity issues etc. Having owned a few LCD machines, they too offer great film like images and I do prefer LCD for playing video games. Again, a demo is necessary. Look out for dead pixels from new. As for ‘
VB’, it is a strange entity and I reckon it can even depend on your home power supply, as it seems very subjective. The 700 is a great machine with a superb picture and a great throw ration on the lens, for easy set up in any room.
Once you have established the quirks of each format sorted and got them out of the way, prepare to be blown away. Nothing can rival a decent projector at home.
As for screens, try
www.intoav.com www.beamax.com www.avsales.co.uk
Hope this helps,
Pete.