"more expensive in the UK than in the US"....
Every camera in the world (and nearly every other piece of technology) is more expensive in the UK (and Europe) than in the US..... very often it seems that they don't actually 'convert' the price, they just change the currency.
I just checked and the Pentax K7's UK price is 1330 UK pounds, with 18-55mm kit lens. That would be $2,203 US as a straight currency conversion, and yet it's actually around US$1400 (around GBP845). I expect it to fall to about $1000 by the end of the year.
If anybody's interested in it I'd recommend buying it "body only" and getting your own lenses to go with it (like a wide-zoom and a tele-zoom)..... the 18-55mm kit lens, though it was improved last year, is still not that good.
Right now, I'm saving up for an Olympus e620 for my daughter, and maybe a Canon G10 for me.... the K7 will have to wait.