I make regular trips down to Key Largo from Savannah. usually stay at one of the hotels right at Mile Marker 100 in Key Largo..there is a Holiday Inn and a Ramada there and several diver ops dock their boats right there so you can walk from your hotel right onto the dock...very convenient! I have used Sea-Dwellers and Rainbow Reef both within the last year...I would recommend both. If you are wanting to dive the Spiegel Grove, the will need to call around and see who has a boat scheduled to go there...there are also several six-pack boats docked there so you can do a customized trip. FYI I am heading down there from Savannah on 5/1 for a few days of Key Largo diving...looking for a buddy...anyone interested??
Dave