Yes, there are luggage trollies but you have to pay for them. They're around $3 - $4 each and you need single dollar notes.

Alternatively there is usually at least one skycap (porter) hovering around the area which, if you have a lot of people in your party, is probably just as expensive or cheap as luggage trollies! They're also pretty good about taking you straight to check-in without your having to wander around and locate it.

We used a skycap last time we returned and he took us to a great check in line away from all the others with hardly any passengers there!