You can also try checking Hyatt Place rates with ValueTrips or directly with Hyatt as a member.
This hotel is a great location (just off 17th Street and behind Embassy Suites) right next to the Harbor Shopping center with a Publix Market, many shops and restaurants.
They offer a shuttle from FLL to their hotel (current price is $5.00 room charge not per person).
They do have a port shuttle but you can just take a taxi which will be easy, quick and less expensive.
They also will hold your luggage post cruise and may offer a day pass for you.