I just purchased this from Currys. The camera is £599.99 on its own.
They wouldn't price match their own website (£579 with discount code) but when I got to the till, the whateverhappens warranty gave the following extras free:
Lexar 8GB 60X Premium SD Card
Lowepro Edit 110 camcorder bag
Belkin HDMI To Mini-HDMI Cable - 1m
Warranty is £6.99 a month. You can cancel the warranty as soon as the direct debit is set up. Make you own mind up on that :)
On Amazon, the extras come to £48.98. Warehouse Express do the camera for £559 but don't have them in stock.
You also get an extra £50 cashback from Canon between 25th June and 31st August 2009
So in all, i'm £1 better off, lol. But buying locally and the warranty option make it a good deal from the highstreet.