Yeah it's a challenge. We've bought right at the top end of our budget and borrowed the deposit so I'm not going to be able to do hardly anything for 2-3 years. It's worth about £30k more than we paid for it and is only going to go up in value with the changes we make, not that I have plans to move for a long time.
Personally, I'd go for the Panasonic as it's a fair compromise on a Kuro and a lot better than the LG. The price is appealing, and the calibration options but they suffer bad image retention. I think they could be good in a few years time but they're not quite there yet and I'd rather have a smaller Panny.
I'll hopefully pick up a 50V10 for around £1350 online (hopefully less by the time I come to buy in a couple of months or so) and another Sky HD box for multiroom. The V10 will go in the lounge and my Sony V3000 in the bedroom. Then that's it basically.
We plan to take in a lodger since the layout of the house means we can rent the ground floor out and not really notice too much - they'd have their own room, en-suite, lounge and utility room with fridge and combi so would be self sufficient apart from occasional use of the kitchen on first floor. If we rent for 2 years, We'll be able to pay the deposit back and save about £7k. Good news is that rather than re-fitting the kitchens and bathrooms, the Mrs agrees converting the loft would make sense as that's the biggest job and at the top of the house (obviously

). The house is only 4 years old so the kitchen and bathrooms are fine, just nothing special and we plan to be here sometime so will work through every room eventually.
So I'm hopefully only 2 years away from a dedicated AV space! Then I just need the money to put some decent kit in it!