You're leaving out of Port Everglades? (making sure it's not out of Miami, because I can't answer to that except that I've heard that the company SAS is good for Miami)
Taxi.
They have a paid shuttle at the ES but it's a pain IMO. And we realized two late that the cab for 3 people was less than the shuttle for 3.
Thanks. Yes, we are leaving out of Ft. Lauderdale. We only have 3 in our party also so it sounds like a taxi is our best option. If I've the boards correctly, ES is close to the port.