Available online at Jessops. Free delivery or collect at stores.
Canon EOS 400D + EFS 18-55mm Lens ( £394.99)
SanDisk 2GB Ultra II (FREE - use voucher*)
Centon D-Trek Backpack 1 (BP400) (FREE - promotion ends 14th May)
*Spend between £300-£599.99 & get £25 OFF - VOUCHER CODE: SPRING25
Also, £45 cashback from Canon, making the whole lot at £349.99. Possible Quidco at 3%. I reckon this is a very decent deal with all accessories to start off, from a reputable shop.
Note: You may get a quote price of £417 the first time at check out. Enter the SPRING25 voucher, then click on the "remove" button on Centon Backpack. Now the discount should be applied to the memory disk, rather than the Centon Backpack.