The console wars are about to get even more interesting, especially as the PS3 is now around the same price as the Xbox 360 Elite.
The 40gb model is available for £279.99 also from Shopto but for an extra £20, you'll have the 60gb model, which has it's obvious benefits including a 50% bigger hard-drive, sd card slots, more usb ports, backward compatability with the PS2 and a sleeker finish.
If you complete the order before 5:30pm today, you'll have it in time for tomorrow and can enjoy it over the weekend. :)
Hope that helps. :)