Wright Dairy in Birmingham?
Alas, the store on 280 closed months ago, and it is the only real outlet for Wright products. You can find the milk (at an extreme price) at IOrganic Harvest in Hoover, on U.S. 31 near the new Publix.
Wright's dairy sets up a stand at Pepper Place on Saturdays to sell its cheese and pesto. The cheeses are wonderful, although they don't sell the fresh mozzarella you see at some local restaurants. We're enjoying the Canbreak Gouda this week.
The guy at the market said they're not set up now to do sales of milk at the market, and they really don't seem concerned about setting up another retail outlet in town.
Of course, if you're willing to ride out to Anniston, you can stock up at the dairy.
I've also heard talk about some informal co-ops in town that make the trek at least every other week to fill folks orders.