On the look out for a projector but i have a set of needs and finding a website that can throw up a projector to match is becoming a pain in the bottom...

my requirements are:
– Lumens (4000+):
– Contrast ratio (over 8,000:1):
– Keystone (BOTH horizontal & vertical keystone):
– Resolution (at least 1280×800):
– Zoom (at least 1.3x): .
- USB playback facility (Not essential but would be a big bonus)

Does anyone know of a projector off the top of their head or a website that has a huge range and great filter options to narrow them right down?

points and a pint for the person who sets me on the right path.