Yeah, you could do that, but actually this discussion adds an interesting slant to cooling the empeg in general. The empeg consumes a little over 6W when operating with disks spun down. All of our slow fan solutions so far discussed are putting 4-6W of additional heat into the case. Does anyone else find it a bit perverse that 40-50% of the heat being removed is generated by the cooling solution?

Maybe it's time to look at DC-DC switch-mode converters, or switching regulators.