yeah, you would have to get custob clocks that somehow attatch to the MOFSET (well, thats what they were in OLD psu's, maybe its something different in new ones) and then transfers the water to a barb on the psu with plastic,rubber...because last time i touched the heatsink in a running psu (wanted to know how got it got after i ripped out the fan) i got a nice 120 VAC shock...and i personally dont want my whole tower havbing that same effect! (aolthough it would be great security to keep peoples hands off of it...it probably wouldnt do good for the motherboard being grounded to it!)
umm...yeah, actualy, now that sounds like fun. im sure a simple waterblock could be modded to cool a psu, and then just intake some air through your psu before it goes to your rad (gotta have SOME airflow, i mean, comeon! EVERYTHING creates heat!)
yeah...someday...