well, i have to admit i have not given up on the idea myself
i was able to cool a foam insulated alu block down to -3 using just a 12v / 5a tec cooled with a large heatsink and a 12cm computer fan
now i have 2 12v/10a tecs and i am waiting for a 12v/29a psu to fire them up. i have dug out an AMD athlon xp waterblock, i also found a 12v 500gph pump, so i plan to run both tecs experimentally using the pump, a bucket of water and icecubes, just to see how low i can go
my goal, after i learn enough on cooling diodes, is to make a quad or 6 red, get as close to 640nm as possible and keep it fairly small to fit into a projector. for the time being, i am just cooling pieces of alu whenever i find the time. have not chilled a diode yet
"its called character briggs..."