Barr only got 0.73% of the vote in Georgia in 2008; unfortunately, I don't see why Goode would do so much better. He gets 3 or 4% when his name is mentioned in the polls, but most people will only think about Obama and Romney when they head into the booth.
Barr did so poorly in Georgia
because people remembered him, and their memories of his history in Congress and in state government were far from positive. I know several people in Atlanta who normally vote straight-ticket Libertarian, even, but decided to cast a vote for McCain or Obama in 2008 just because they so strongly detested Bob Barr. I don't know much about Virgil Goode, but one can probably assume his former constituents remember him a bit more fondly.