Are you looking to get an X800 or a 6800? Let me know which one (state the SKU) and what price you would be willing to pay. (serious suggestions only please) and I'll see what I can do for you forum guys.
Suggestions at the moment are:
SKU 300413 X800PRO for £275
and
SKU 300440 6800GT for £314
Speak up. :)