i had one for a while...found it on my ceiling in Florida...and i've had a few friends with them. they are pretty laid-back lizards, fun to watch but otherwise boring, and they are very fast. just remember, Geckos can climb walls and go upside down...so if he gets out it migh be amusing.
i'd say they need just what any other lizzie needs, aquarium, heat rock and lamp, they have to have a place to hide, maybe a spray bottle to give him a little rain, crickets or mealworms.