seems like a good price for a very fast card! yes i know the new dx11 cards are out but this is actual slighyly faster than its driect rival (radeon 5770) and about £20+ cheaper at this price. it may not be the winner in the long term but if ur just looking for fps or another 4870 to crossfire then this is a great buy!
i havn't seen it at this price since it was just leaving the shelves and then it was only a few £s cheaper for a version with a far worse cooler (this one vents air out of the case) so this seems a great buy for anybody looking for it :)!
mybe u could use 1 of the voucher to get a fiver off ;)
hope this helps :)!