We did something similar in January 04. That's when I met one of my favorite drivers before he was with Sunray. If you're more than 2 people, it's usually cheaper to use a car service. Plus, you can schedule the time to get their earlier if that's somthing you want.
There were 9 of us, flying in to MCO on different flights. We all met up at baggage claim, then went up to the Hyatt together. My mother was able to get 3 seperate rooms with her senior discount. Then, we also had a couple Hyatt certificates that I got from mypoints.com
We kept our luggage with us, we got to the airport around 1 or 2pm. We checked in; went swimming (outdoors, very cool); cleaned up; went into the airport food court for dinner; back to the room to fill out cruise documents; back to the food court for dessert and shopping. Got up in the morning; went to Krispy Kreme for breakfast; (remember to bring your room key or send it with the teenagers if they go to get coffee. You can't get back up in the elevators without it!!) packed up; and met our driver out front at 9amish. Got to the Cruise Terminal and Disney collected our luggage, whatever we wanted them to take and was tagged. Then, we went in, made it through security, checked in, and was the 4th family in line. We took turns saving our spots in line and watching our carryons while the others explored the terminal, grabbed a coffee and muffin, whatever. The characters came out to greet people and the kids watched tv. The time flew by and before we knew it, it was time to board.
Cheers!