Tyree is right about your ambient temps, the heat HAS to go somewhere. That means into the immediate environment (I suppose you COULD put the radiator out a window and keep the heat out of the room. Not recommended with a Southern exposure!
).
Liquid IS spendy, but still quieter than 6-12 fans in an air-cooled system. Usually runs one large fan in the radiator, plus a couple case fans to keep it cooler inside. And for those component not equipped with a liquid heat sink.
Liquid cooling doesn't use water, it uses a non-conductive chemical fluid. Spills are still a mess, but won't short-out yer machine as long as you have some brains. (kill the power an clean it up).
Liquid cooling is more efficient than air cooling, your CPU/GPU temps will run 5-15c cooler. Dang good if you're dealing with OC and/or high ambient temps (I live in an upstairs apartment, I feel ya).
Good luck! I need it for the new system, too.
Eric