While I know that there have been places for ages that will machine parts, this place seems to have brought it down to the rest of us. It was mentioned on Slashdot, but I wanted to post it here because I think this may make my "can cooler" idea much easier. If I can get the aluminum housing and heat transfer plate, attaching the peltier cooler will make for an easy assembly. Also, that way, I don't have to metal machining here at home.
eMachineShop - Online Machine Shop - with FREE CAD Software