Ah excellent, thanks for the repsonses guys they're very much appreciated - nice to see your running in 1920x1200 and the 512MB isn't holding you back at all.

Going a little OT, but, that saves some money on the waterblocks too as I think 3870 blocks are a little cheaper and hopefully once someone plays similar tricks with the bios they'll be pushed way further than 860MHz.

HD3850 crossfire it is, lets see how quickly crysis brings it too its knees ( just come out of Uni and I'm really liking this whole disposable income business )

Thanks again, and best of luck to you all pushing these pro's as far as they can go!