No kidding about it turning into an obsession! I'm still exploring dark beers - I got a rye stout bottled, and I'm about to do a Yeti clone. It's so much fun!
I've also hit up the Brew Depot; it's really close to where I work, even though I live on the East side of town (near EAV).
Has anyone been to Just Brew It, a bit south of Atlanta? It's my favorite brew shop (of the three I've now been to); the guy who runs it has been amazingly helpful. Maybe some of us should plan a meetup down there (or at Brickstore? It's the place for beer!).