Well the cosmos s can fit a 5970 with a liquid cooling bracket. I suppose it could fit the black ice gtx 480, but you'll lose a few hard drive bays in the process.
Black ice GTX 480 is a quad radiator, and no it will not fit. It will not even fit in a Silverstone TJ07 without sanding both the case and the radiator down a little.
You can find plenty of good 360 radiators and a 240 radiator which will cool just as well.