> > ...snip... You would also need to figure out an adequate spray pattern, build/buy
the nozzles, water pump, water container, etc. < < I'd get one of those misting thingies they sell in the plant departments of the building supply stores, mount the business end in the duct well upstream from the rad.  They put out a fog as opposed to a spray and as a result will cool both the air and the fins at the same time.  I'm sure figuring out a little pump would be a piece of cake, just use a windshield washer system from the boneyard.  The mister will actually keep the water consumption down... I know that it takes a fixed amount of water evaporating to provide a given amount of cooling, but I think that with both the air and the fins being cooled that kind of thing would provide a double whammy (as opposed to a blood of water from a sprayer).  Just some random thoughts from someone who hasn't had anywhere near enough sleep in the last 24 hours <G>

  <marv>