Hmm, no thanks sharkeeper, I've barely rescued my CPU from water condensation caused by an insufficiently isolated Peltier. Even if the liquid is isolated, I certainly believe your price estimates 🙂
I do plan to install Alpha heatsinks on my P3/450 and upcoming Thunderbird (which does dissipate less heat than the original Athlon). Quite honestly, I may wait for AMD Palomino (heir to Tbird), which will have way less power consumption.