Hoot:
Obviously you couldn't use the electrostatic cooling inside the system in any way. I was thinking someone could use it on the radiator, mounted outside the case. It would be simple to make a fine wire mesh that is negativly charged and place it an inch away from the grounded radiator. This would cause a fine spray of negitive electrons that would hit the grounded radiator. If it really helps to exchange heat it might be worth a try.
Since the radiator is grounded it shouldn't introduce any ions into the system. Although, if you start smelling a sweet musky odor you might want to worry about the ozone generator you just created.