I've seen an offer on the latest Sharp series. So new that even Sharp UK tech support doesn't know about it (there's a bit about 'em on the home screen here, tho).
I was quoted (on Tottenham Court Road, so deals are there to be done) £1199 for a 46" LCD 72Hz Aquos and £1460 for the 100Hz version. If you buy one, they're also offereing a deal on their latest BluRay player - £200 off!!
I'm seriously thinking about this and am going back to do a serious test over the weekend. The player seems to be the only one around that supports HDMI 1.3 and all the forwards functionality that should offer. And at a net of £199 it's potentially a steal. The screens have a fast 4ms refresh rate and the brief test I saw looked pretty good in terms of blacks, contrast and fast movement.
Check out the LC46X20E or LC46XL2E on the Sharp site. The BR player's the BD HP20H. The offer's on there, too although their prices are higher.