I'm a born-and-raised Atlantan so hopefully I can help you out.
Everything wordpast said is very accurate! If I was young and married, I would definitely recommend living in Buckhead, Virginia Highlands/Morningside, or Ansley (area in b/t VaHi and Midtown), especially if you don't want to commute on a freeway. That being said, LIVE CLOSE TO WHERE YOU WORK! If you work in Alpharetta, LIVE THERE. If you work in Marietta, LIVE THERE. The traffic here is such a nightmare.
And there are nice areas both in town and in the suburbs.
If you want to live in a condo, I would look in Buckhead or Midtown. If you want a house, check the suburbs (if you work out there), Garden Hills (neighborhood in Buckhead), VaHi, Peachtree Hills..basically everything in b/t Buckhead and Midtown.
Prices here are cheaper than say, NYC or San Fran, but are probably on par with Dallas, Charlotte, Nashville, etc.. Due to the down economy, there are lots of buyer incentives on condos currently being built, and if you're into renovating, there are always "diamond in the rough" houses to be had.
Winters are mild, summers are HOT. Winters are short, summer are looooong.
But hey, it's the South, what do you expect?
A car is 100% necessary. Public transportation here is a joke. The one exception being I always take MARTA to the airport.
Atlanta has fantastic restaurants, boutiques, and malls, especially in Buckhead and VaHi.
You will not lack for shopping or fine dining of all types here. There are also the "touristy" attractions, like the World of Coke, Aquarium, Stone Mountain, etc.. Braves games are a BLAST to go to in the summer! The Hawks/Falcons/Thrashers aren't great, but the games are still fun to go to.
In terms of jobs, it really depends what type of profession you're in. Atlanta is great for mid-career people and upward, but hard if you're a young professional starting out (welcome to my world
). Lawyers and doctors can always find jobs, as well as anyone with an engineering degree, although you'll have stiff competition from GA Tech grads. Companies such as Deloitte, Accenture, and McKesson have a huge base here.
Several companies are headquartered here, such as Coca Cola, BellSouth, etc.. and they are always looking for a wide variety of people. If you're into broadcasting/TV, Turner is based here as well.
Hope that helps!