Thanks to Chickens in the Road for the link to this great article from Mother Earth News on building an outdoor bread oven.
The photo is from Mother Earth News [ photo by Meemee Kanyarath]
This oven can grill, griddle, bake, smoke, etc. It's brilliant!
The oven looks awesome, but it's really designed for California weather. Our freeze/thaw would cause some problems unless it was covered either with a structure, or with a tarp - but with a tarp, you'd have to be vigilant and remember to cover after it cooled some. I'd never remember.
Read the whole article. It's long, but there is a great photo gallery and a great description of what you can do with this thing.