just been flicking through the new argos catalogue and got to the apple page. they have the 21.5" 3.06ghz iMac in the catalogue for £732.00. its £949 on the argos website and £969 on the apple website.
you can find the specs on the argos website by clicking "go to deal".
might be useful to someone who wants to argue their way to a less ridiculously priced iMac with someone at argos.