You give Disney a flight no. that is close to the time you want to head over to the resort.
You are allowed one trip to your resort and one trip back from your resort to MCO if you are staying on property.
The Hyatt will even assist you in getting your luggage as well for a small fee.
Good info....next step, any suggestions for Hotel near the airport that provides shuttle pick-up to and from MCO, even for a small fee