Giusto's Bread Flour
I was shopping at my local Safeway and in their bulk bin section they had a couple bins with Giusto's flour. They had the Baker's Choice and Ultimate Performer versions. I bought some of the Baker's Choice so I could try it out. Totally don't remember how much they charged for it. So, if you are in the SF Bay Area, you might want to check your grocery store's bulk bins to see if they have any.