Just so everyone knows, I wasn't implying anything about anyone here.
I've seen DK's sig with the watercooling and I reckon watercooling is a brilliant idea if you can do it right. If I had a desktop I'd definitely do it (kinda tricky with a lappy).
I've seen a couple of sites where a guy pulls apart a fridge and uses the compressor, radiator, etc and stuff to freeze their CPU's to around -30 degrees! Now that would kick ass. If I find some pics or links I'll post them.