I'm very happy with my 5100 (which is a 5200 without the tuner box). Got that for £1790 plus a small amount for delivery. It does need direct connections (rather than the media centre) but is pretty flexible (4 separate AV in's with lots of choice and 2 PC inputs). PQ is outstanding, though I am still finding the best cables and settings all round. Despite the negative postings about this model, I think you'd be very happy with it for most types of use, and it is better suited for HD than the SD models (if not quite as well-suited as a true 1024x768 panel, non-ALIS panel), at about £1,000 less than those models
Ian