I haven't actually been there yet, but this post is basically an ad for Leavain and their wonderful wonderful bread (and brownies). I really particularly enjoyed a spelt and walnut roll.
I've discovered Leavain through Jan Power's Farmers Markets in the city on Wednesdays. If you go there, you might see the Russian-seeming man that preaches something that sounds a bit like communism. I've also seen him at Central station.
Anyway, here's a link to a decent post on an interesting site - by someone that has actually been to Leavain. With a photo. :)