Samantha,
Thanks for your question!
The
Hoop-Dee-Doo Musical Revue is one of my family's favorite restaurants. We go on almost every visit, and have even been lucky enough to be part of the show!
If you make a reservation online typically it will only take a single credit card, but I did call Disney dining to confirm that you can put the reservation on to as many as two cards. What you will likely want to do is go ahead and make the reservation online so that you can secure your spot at the dinner. You would do that with just one card, initially. From there, I would recommend that you call the Disney Dining line (407-939-3463) to arrange for the reservation to get pre-paid across the two cards that you have in mind.
While this is your best plan, there is no reason why you should not have some other card numbers with you, just in case. You can always ask them if they will split the pre-paid charge across more than just two cards. The worst thing they can do is say no, right!?!
By the way, if you have time, make sure to arrive early and explore the grounds of Fort Wilderness. It is a really fun area, and the theming around there certainly sets the mood for the show you are about to enjoy!
Have a Magical (and delicious) Vacation!Doug