Margo:
Rats, doesn't look like Cont'l and AA flights can link up.
http://www.dfwairport.com/terminals/ As much walking as you do to raise money for breast cancer research, the hike from the airport to Plano would probably be a piece of cake for you if you didn't have to fuss with luggage.
Hey, see you and Lars at the hotel.
Cheers! Ray & Penny