Hi Jen,
We will be staying at the airport Hyatt hotel. It can be pricey, but is very reasonable if you can use a Stay Certificate. You will need to purchase a "Choice" level one to use at the airport Hyatt. Here is the link to purchase
https://www.certificates.hyatt.com/products/CertsStay.aspx BUT, if you decide you want to do this, call before and see if they still have availability to book with a certificate for the 15th. If they do, they will ask you for the certificate #. Just say that you just ordered it and do not have it yet. They will note it on your reservation and ask for a credit card to hold the room. Then, when you check in you just show them the certificate and that's it. So for $145 +s&h you got a room at the airport. Staying here is soooo convenient, especially if you are getting in late.
Now, about transportation. We usually take the
DCL bus because it's just two of us and so easy. It's $35 p/p. We just leave the luggage in the room, get some breakfast, and then take the first bus out in the morning and are one of the first groups at the terminal. We've always gotten boarding #2! Also, if you are using the Disney transfers, you can completely check in at the airport. They process all paperwork, take the ID photo, and get your Key to the World card before you get on the bus. That way when you get to the terminal in Port Canaveral all you have to is relax and wait for then to call #2! Also, the luggage you leave in your room at the Hyatt magically shows up on the ship.
Hope this info was helpful! Sorry its sooo lengthy!

Let me know if you have any questions!