Very overpriced: an almost new one with cosmetic blemishes and 90 day guantee costs $779 = £400
An established price, unused, in original packing is $700-800 (
http://www.everymac.com/systems/apple/i ... k_900.html)
One for immediate sale on UK Ebay at GBP 375 (CYP 340) and that is as new, used for only 10 hours, with all accessories etc. No auction bid made yet, so not exactly a popular item
http://cgi.ebay.co.uk/AS-NEW-USED-10-HO ... dZViewItem
I suggest you will have to seriously revise your price downwards if you are keen to get rid of it.