Right.. just ripped out my 2 loops for some new tubing and a bit of rerouting. Its going back in tomorrow (wife permitting) and I'm having them different colours this time. Loop 1 is for the cpu Loop 2 for the 2 7800gtxs I have red and blue. My initial thought was red for the cards and blue for the cpu.. what do you think? Give as daft a reason as you like for your choice I thought red for the gfx cards as they're hotter than the cpu and more sexeh..