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I was kinda laughed out of Ars for this suggestion, but I'm goint to try evap cooling my radiator.
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Really? I don't remember that thread. Its funny, you're here because you feel ars didn't listen, Infidel is at Ars becuase Bill made fun of his stuff here.
Anyway I'd think carefully about that radiator though.
First becuase its a very poor way to do things. Only a tiny amount of heat is drawn from the evaporating coolant during the phase change. The vast majority comes from the water that doesn't evaporate. This makes sense because the mass (and therefore heat capacity) of the evaporated coolant is negligable compared to the mass of the liquid water. You end up chilling the water a lot more then you chill the coolant in the rad. Then the chilled water won't evaporate as quickly due to reduced vapor pressure. The result is a huge loss in effciency.
OTOH if you flipped the setup around, that is dumped the processors heat into the evap unit, you gain a lot of effciency becuase the processor's heat can power phase change reactions in the evap.
How would you do this? Drop the rad into the evap's tank. This way you'll have your CPU power dissipation working for you and not against you. You'll also keep the rad cleaner since it won't be filtering the air leaving the evap.