I wasn't too kean on the whole Pelt idea myself, until I came accross this:
http://www.dansdata.com/pelt.htm
and this:
http://www.swiftnets.com/socketsealing.htm
There's also some people who've elected to use a variable supply with their Pelt, because when you think about it, what's the point of cooling down your CPU below the max temp that your CPU reaches when it's at full load?
Makes a lot of (green) sense to me!