I'm a big fan of a lot of Joel's methods. His advice to develop cheap, low cost, portable infrastructure is what we've been building our farm around. As an added bonus, the quality of pastured chicken or ducks or eggs or whatever is unbeatable. We strive to raise only the best quality produce or meat, and by selling the vast majority direct to our customers we can actually earn a reasonable living from it.
It is a great book on farming but I find it to be one of the best business books I've ever read as well. Just wanted to recommend it to you.