So the next generation of Radeon's is upon us, starting with the mid range cards this time despite the normally high end names. At less that 200 quid the 6870 looks like good value tbh.

http://www.bit-tech.net/hardware/graphics/2010/10/22/ati-radeon-hd-6870-review/1
http://www.bit-tech.net/hardware/graphics/2010/10/22/ati-radeon-hd-6850-review/1
http://www.anandtech.com/show/3987/amds-radeon-6870-6850-renewing-competition-in-the-midrange-market

Yeah, looking at possibly getting one of these to replace my ageing 4870 512mb card, couldn't justify the cost of the 5xxx series. Will probably hold on to see the 6900 series, even if too expensive might help drop these down further.