Very good info, somehow my experience with Peltier chillers is fairly limited.
I remember working on a customers AMD machine(back in the day), if i remember it was a 500mhz Slot style and he was running it at 800 mhz with one of of these fancy Peltier coolers, he was kind of bragging about it, had a very large passive heat sink.
He had just turned it off, I was installing some more ram. By accident my hand pressed right against this 200 degree monster, and it literally seared the flesh on the back of my hand, it literally had grill marks on it, just like a steak.
I had never dealt with that kind of heat from a cpu before, but it was extra heat generated by the Peltier.
Good link, thanks.