Hmmm. You UK folks should submit to the evil empire that is Wal-Mart and let them build a few million stores near you. They seem to have sucked up most of the initial copies of this game. I couldn't get it from many local retailers here for up to four days past release, and then an employee of the company I had pre-ordered it with let me know he'd seen a copy in Wal-Mart when he was there last. I bought the last one they had on their shelves at the time and yesterday when I went in they had another 4 or 5 copies on the shelves.
