This is a great deal in their "today only" section (valid until early tomorrow afternoon).
Free delivery if you have sufficient posts (20+) on AVForums (see http://www.avforums.com/forums/scan_offer.php)
This card has very similar performance to the 4670 which is around £65.
You need to order from the "Today Only" page or you will pay the normal price of £67. Clicking this link should take you to the Today Only page.
Some links to reviews here:http://www.testfreaks.com/graphics-cards/sapphire-ati-radeontm-hd-3850/