I think the standard suggestions are Sanyo Z2 or Panasonic AE500 for LCDs and maybe the Sharp Z91E for a DLP, leaving cash for a screen. There are others of course, perhaps less popular but probably just as good, your best bet is read the threads here, all common machines are likely mentioned.
i am not up with the throw distance of the new Domino 20H, but I can firmly reccommend this wonderful projector. I have seen it up against some stiff competition, and remarkably, it really holds its own. You owe it to yourself to at least catch a demo. Good hunting,
Depends how much you intend to use it and what you mainly want it for. Consoles, sky ,pc.
AE2/3/500 and z1/2 are good ones to start with and £2000 will buy you some impressive Dlp's sharp z91 and optoma 56 are worth a look if Rainbows do not bother you.