[cotdt]

Although Cathar and JWFokker mentioned important points, this should work pretty well if you have a peltier controller, either software-based or hardware-based. The main point of this is cost and silence as Ls7Corvette has mentioned. I really like this idea, and I think it just needs to be refined. I also think, as does Ls7Corvette, that heatpipes would work better in this setup.