I know it's an old camera and I know it's been cheaper before but not today. It's a well respected model and one of few entry-level digital SLR models that lets you compose the picture on the screen.
Use the 15% off code (SALE15 as on their homepage, expires Thurs 31/12) - gives you £60 off their £399.99 price. Go via QuidCo for 1.5% off (tracks at £6) offset by the delivery will be charged at £5.80.
You can find it cheaper but WITHOUT the 18-55 EF-S lens this kit includes
If you want the 2nd lens that comes in the £499.99 kit that's out of stock, Argos Clearance on eBay (look in the outlet section tabbed at the top of the ebay homepage) has them for <£100. Shame you can't save 15% on that too but not bad. That lens is an EF, not EF-S lens.