Chip,
There is a really good school in Santa Fe that teaches amateurs and mostly professionals. The landscape classes there are incredible. I took the Beginners (which I was not, but a friend was) and another class called "Finding your Photographic Voice" with one of Ansel Adam's former assistant's. Check out
www.santafeworkshops.com I will probably try to squeeze in another week there next year between PIP and my two weeks in Italy.