I found this on another thread...this is probably how we'll get from FLL to the Miami Port....
SAS Transportation
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I know this is a little late for the initial inquirer but for anyone coming late to this site looking for this type of information I hope my comments will be of great use to you. For our cruise leaving from the Port of Miami on 2/7/2012 in which we arrived in FL via Ft Lauderdale Airport (FLL) we used SAS Transportation. I sent them an email,
ridesas954@sol.com , in advance (about 10 days before we were scheduled to arrive) to arrange pick up at the airport and for return from the terminal. Upon arrival at FLL I called them and within 5 minutes they were there. Even though it was just my wife and I, the fare to the Port of Miami via the Van they sent was only $15.00 per person to which I added a $10.00 tip as he also loaded our suitcases on and off the van. Upon our return to Miami, I called just prior to going through Customs and again (about 35 minutes latter) just after we finished. The Van arrived within 5 minutes of our getting to the curb in the front of the terminal Again it was just my wife and myself and again the fare was only $15.00. These guys were great, prompt and inexpensive. I heartily recommend anyone arriving at FLL going to anywhere in Miami, Port or otherwise, use their service.
Gene