GAME.co.uk have started offering preorders for the PS3.
They haven't updated their PS3 preorder page yet but it shows up if you search for "playstation 3" in the search box.
£564.96 for the Console with 3 games.
Pretty expensive, yes, but apparently GAME have the largest PS3 allocation in the UK, if you're desperate to get it on release.
Go through quidco for 3%
Resistance: Fall of Man
Virtua Fighter 5
Virtua Tennis 3