Has anyone used travelocity, expedia, or orbitz to book their airfare? I thought that it might be cheaper to book directly through the airline's web site. I am seeing reduced fares on these 3 sites for airfare from Indy to MCO, but it is not showing up the same price on the ATA web site. Can anyone tell me why this is? Should I go go ahead and book through travelocity and pay the service fee? Will the fares go down on the airline site, or is this a special internet fare that I cannot get directly through the airline?