i saw the refrenced article too, and that why i wanted to go this route instead of theirs. Again, by replacing it with a bigger TEC, it would cool better, but there is a temp cutoff, so it will not activate until it has crossed that threshold. Finding that specific temp is the key. Thats why i was thinking to run the 2nd/bigger one on the back at all times...
also, if i recall, the efficiency is best @ 1/2 the rated voltage? If that is correct, would running a stronger one off the 5V wire in the molex yeild a better result?