A lot of "good ol' boys" do business with Brown Lumber and Building Supply, says Andrew Brown of his family's business in Columbiana, a central Alabama town of 5,000 that's the seat of Shelby County. Most have been around more than 30 years; some were friends of his grandfather, the second Andrew Brown. Now a year out of Auburn University, this fourth Andrew Brown is getting on-the-job schooling. Here's what he knows: