exclusive to Japan. The 320 GB console, which comes with a matching DualShock 3 controller, should go on sale in the UK pretty soon. Amazon has it from April 27 for £250, and Play.com is selling it for £240 starting May 4.
If you're holding out for the blue model, don't bother. Eurogamer says Sony reps declined to bring that model from Japan over to the UK. You should see listings for the red 320GB PS3 popping up at other retailers shortly.