A few years back I bought a bag of home-dried chipotle peppers from a lady at the Santa Monica farmers market who was (IIRC) mostly selling various dried bean varieties. They were wonderful and smoky (in a natural way, not the liquid-smoke taste you get from the canned ones) and a little went a long way ... just one of them chopped up finely in a soup was plenty of heat for the missus and me, and way too much for our wimpier friends.
On the last few trips I've made to Santa Monica I haven't been able to find them again. Does anyone know of other farmers market sources worth checking out? Thanks!