Hi Horratio,
Just wondering if you brought that new TV yet or you still struggling on which to buy lol. It's hard isn't it, I think i was in more of a dilemma than you though cause at least you have like a price bracket which you wont go beyond, but i was really torn between the pioneer 428xd (apparently the dog's swollocks but not full HD) or the Panasonic 42pz80b (not as good as the pioneer but has Full HD... oh, and also cheaper by roughly 300 quid).
I opted for the Panasonic eventually, got a Sony Dav-is10 with the £300 I saved too, so message back on this thread to see how you're getting along, oh.. and a word of advice, it doesn't finish there either, once you brought your tv, you'll be coming back on here to ask if you set it up correctly, what cables do you use etc etc haha
Have fun