I think some people in this thread will enjoy the following link. Don't really agree with the ultimate conclusion drawn at the end, but it is well cited for interesting tangent reading, and the comments have some pretty excellent tips.
http://thelastpsychiatrist.com/2007/02/what_is_the_best_and_healthies.html
I really like the stuff you can get cheap from ikea, but kicking horse s pretty solid too. I read online that you can buy unroasted beans and cook them yourself in an air popper. I want try that sometime.