Thanks for all the kind comments, the case is from here http://www.aria.co.uk/Products/Components/Cases/Bitcoin+Frames I had to modify it so I could mount the PSU underneath and attach the fans either side (push pull across the GPU's seems very effective cooling these cards) I was very surprised by the power draw, I may get it lower, still tweaking some settings. BTW here is proof! (sorry for bad pic, Watts is the bottom number).
