My monster build which I started working on since October but have been researching it since last Summer. There is a build log on forums.overclockers.co.uk called Ramthor's Monster Build where you can see a lot of pictures from the making of for anyone interested. Performance wise currently it is on the 10th place on 3DMark Hall of Fame for 2 GPUs but initially was on the 9th place. (screenshot provided). I'll come back later with details if needed.