as a fellow UK importer, (and League 2 supporter, COME ON SWINDON!!) I have a few tidbits of info you may find useful.
Play-Asia will not send the games to the UK, believe me, i tried.
do not go with eBay - unless you know 100% who you can trust (ie. nobody)
i personally went with
CD-Wow to get my games. At only £20.49 each, with no delivery, they're a bargain. However, despite several e-mail convos with the guys over at CD-Wow, they cannot 100% guarantee the delivery. But they get a lot of their stock from the states, and have a good reputation for importing games (obviously, apart from those not reading "NTSC" when buying GC/XB/PS2 games and wondering why they didn't work). they say that they should deliver within a week from release (22nd) but maybe up to 10 working days.
if you're not too happy with those, you have the options of
Video Games Plus, or
MovieTyme.
Never used those ones, but maybe if you look around, ask people, then you may be able to find out how reliable they actually are. Amazon.com don't deliver to the UK.
Best of luck!!