It will cost Â£375 for the ultra version . Got one ordered. XFX Geforce 6800 Ultra 256mb GDDR3 will be one my signature soon. There is going to be a 512mb in summer but by the time games need that geforce 7 will be out.
I was talking to the people I got my computer from and they were saying in a few months that they were finally comming out with some 512MB video cards. I don't know how much Â£375 will be in $, I'm from the US. I do know that everything is more expensive here, wouldn't suprise me if it was $500+.