Hi John and welcome to the Disney Parks Moms Panel.
As far as I am aware, the following forms of payment are accepted at the Walt Disney World Resort:-
•Cash (U.S. Currency)
•Traveller's Cheques (must be in U.S. Dollars) Photo ID required
•Disney Dollars (Disney's own currency)
•Credit Cards
•Disney Gift Cards
•Disney Visa Rewards Card
If you would like to seek confirmation about AMEX Dollar Traveller's Cheques specifically being an accepted form of payment, I would recommend that you call the Disney Experts at the
Walt Disney Travel Company on freephone 0800 16 90 730 from here in the UK.
Wishing you a magical holiday filled with memories which will last a lifetime!
Emma