A few articles touching on just about every aspect of keeping your system cool, quiet, or both.  Hitachi gives The Inquirer a sneak peak at their new quiet watercooling offering.
“The prototype exclusively pictured here, is installed in a customised Shuttle Small Form Factor PC and is capable of dissipating 150W at <34dB(A) and 120W at <28dB(A). These noise levels are for processors operating at 100% load and the idle noise is claimed to be only 24dBA.”

Here are some more Cases & Cooling reviews from around the web:

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