All the "how to start a garden" books that I looked at advise starting small. They say you should start with a little patch, and not too many plants, lest you get overwhelmed, and you won't have to spend too much time, blah, blah, blah....
Aubrey and I have adopted the opposite philosophy. Namely, that if we plant enough stuff, surely something is bound to grow. Which is why our one south facing window is doing double duty as a greenhouse right now.
Make your plans now to visit us about mid-july, and hopefully we'll have some good homegrown produce to share!