I am so excited... went to check pricing for our return in January (recall I had USA3000 vouchers to book the trip down so I only need one way). I'd been planning to book AirTran for ~$650 for all 4 of us, and today I checked and it was down to $619, leaving at 7pm-ish with a change of planes in Atlanta. As I was getting ready to purchase those, decided to check Southwest and got all 4 tickets for $577! We get a later flight at 9:20p and it's a non-stop!! YIPPEEE!