It seems that everyone knows about my on-again, off-again love affair with water cooling. I've played with it a bit and admired what it has done for various systems my friends have built. And I got no less than five emails pointing me to this post at Ars Technica.
Water cooling components other than the CPU, video adapter and motherboard chipset may be a bit far out, as in overkill, but it still is interesting, though I have to wonder where we're going to stuff all the separate, discrete radiators. Especially with the trend to smaller form factors. But that's a problem for another day.