Locally (Washtenaw County, MI) you can buy many items in bulk at: Whole Foods, The Peoples Co-op, The Ypsilanti Food Co-op, and By The Pound. I'm sure there are more. If you know of other places, please comment and let me know!
Baby update: Baby Nathan is getting so big. It's so fun to be a (mostly) stay-at-home mom. In less than 2 months he will be 6 months old and we'll get to start solid foods, purees that is. I'm looking forward to cooking for him. He smiles all the time and makes life so much fun and exciting.