When David lands in L.A. with very little money and no real prospect of publishing his first novel, he takes a succession of dead-end jobs. Soon he realizes that he has to o ffer something really special if he wants to make good money. And so he decides to think big-and to cash in on his massive, yet most personal asset. "Big Things" by Jody Horowitz is a cleverly written story. It's racy, juicy, funny and sometimes sad.