Should I book my airfare?

[Harvest02]

Our family of 4 has a trip booked for June 9-15th 2006. We have pretty much decided to fly down since the price of gas is kind of high and flying would not cost much more than driving. We would really prefer to fly Southwest out of Indianapolis since their flights are non-stop. The only problem is that they have not released their prices past June 9th. Airtran has great fares too, but they connect in Atlanta both ways. I am afraid that if I don't book on Airtran, the good fares will be gone! Should I wait for Southwest to release their prices, or just go ahead and book on Airtran? Only 134 more days! All Star Movies!!!