"Monk! Monk! Monk!" could probably be heard way off in the casino. A friend leaped out of the bleachers, bear-hugged the winner and lifted him off the floor. A delirious circle formed around Costanzo, who was crying and gasping for breath. A good 10 minutes passed. Finally, security guards got to him and helped him toward a sofa, where an oxygen mask was strapped across his face. He had yet to say a word. When the mask was finally removed, Monk still was speechless. His eyes scanned the faces of a dozen friends and officials who stood around the sofa, looking gravely concerned, wondering if the first annual Nine Ball world champ was feeling O.K. Then Monk finally spoke: "Does anybody have a cigarette?"