The PS3 is on sale at £425 at Virgin Megastores online.
I know some people have posted deals for £399, but if you have a Virgin Credit Card, you can get 10% off all purchases, bringing the price down to £382.50. See http://uk.virginmoney.com/whatshot/popups/megastores.html.
If you go via quidco, you get an extra 5.5% off the basket value, bringing it down to £361.46.
May be useful for some people. May be worth applying for a Virgin Credit Card just to get the discount?
Sorry, it's just 3.5% via quidco, meaning final price of £367.62 ish.