Taking the family to Disney World in Sept and have been monitoring airline fares for months now. I just assumed that booking flights through WDW Travel would not be might best bet. So yesterday I thought I'd just call and see, and sure enough, they got me the best fare BY FAR. The best SW Ding rate I have seen was about $320 per person (for 4 of us) and WDW Travel got us $245 per person on American. Just wanted to pass on my experience in case others are waiting patiently for the best fares.
You get the same rates booking online with disney.com too!