we are not driving and parking at the pier this cruise; what are the options for ground transportation to and from the airports. We are thinking Newark is closer than JFK but wanted to weigh all the best options to get to our NCL ship (the Gem) in Jan2008. We can get a flight to either Airport that would arrive around 7:30 AM on a Sat. What are our best options to getting in and out of Manhattan? thanks for any advice; there will be 6 of us if that makes a difference.