You'll get used to narrow road riding - sort of. Drivers will buzz you, yell, and throw beer at you, but they'll rarely stop (no one wants to get beaten up by a guy in spandex ). After you've ridden around a while, you'll figure out the better routes and times to ride, and you can find some good ones here in the ol' South.

And a warning about bike lanes here. We only have a few marked/adjacent lanes here in the Birmingham suburbs, but you'll often find them littered with broken glass. And they've also marked some lanes downtown on the city streets, but right next to the curb parking, so getting door'ed is a definite issue. Share the Road signs are going up in many places, and I hope that ends up being a help - not a further annoyance. But they are trying a little. Not sure if Atlanta has the same problems.

But sidewalks are mostly for kids on their 12" bikes with training wheels. If you do ride on them, you're supposed to go at the speed of pedestrians.