The Corsair Graphite Series 780T Full-Tower case supports liquid cooling with a number of different size and location options.
If you just want a basic kit system, the Corsair Hydro Series H80i Liquid CPU Cooler is a good choice. A basic 120mm or 140mm fan/radiator combination could be located on either the back or top panel for cooling a single CPU. For dual processor builds you could install two 120mm or 140mm fan/radiator combos, one on the back and one on top.
If you want something a little more aggressive, then a dual fan 240mm water-cooling system might be to your liking. Here we have a Corsair H100i CPU cooler installed on the top panel. You could also go with the Hydro Series H110 Liquid CPU Cooler that features two 140mm fans and a 280mm radiator. Note: fans are oriented so they pull air thru the radiator and exhaust out the top of the case.
In addition to the top panel radiator locations, the 780T also provides mounting locations on the front (3 x 120mm or 2 x 140mm) and bottom (2 x 120mm with HDD cage removed).
Still want more… OK, how about a custom water-cooling system with a three fan 360mm radiator on top, front, or both? If you want to go this route, you will also need to take into consideration where the ports on a large radiator are located. If you don’t have any 5.25” devices installed, you may choose to route your water hoses down from the front of the radiator. In the build above we chose to locate the hose barbs to the rear to leave room for an ODD in the second drive bay.