There has been a lot of posts for the 400D.
Here's a great deal on the more expensive Canon EOS 30D with 18-55 lens for £599 less Canon Rebate -£65 which is a NET for £534 plus p&p.
There is also 2% Quidco which makes it £522 plus p&p.
They were doing refurbs for £499 which I think is sadly finished but still a great bargain!
Info for Canon rebate can be found here -http://canonlensacc2007.onlinerebates.com/intro.aspx?country=uk
Some of the features -
8.2 MegapixelCMOS sensor
Shooting modes: Auto, Portrait, Landscape, Close-up, Sports, Night portrait, No flash, Shutter priority, Aperture priority, Manual and A-DEP
Picture Style image processing
2.5" TFT LCDmonitor (230k pixels)
5fps continuous shooting
Spot metering & 9-point AF system
E-TTL II distance-linked flash
Compatible with all EF/EF-S lenses and EX Speedlite flashes
DPP RAW processing software
Magnesium alloy body
1 Year Parts Guarantee / 1 Year Labour Guarantee