A Moment Of MagicTHEY HAD TO PLAN TO BE LOVERSFor Susie Costain, designing Mardi Gras costumes set her free. To be creative was as necessary to her as the air she breathed. Sy Avery understood Susie's dedication to her work. Being a gifted photographer, he, too, made certain sacrifices. But when the sacrifices included giving up precious time together day and night something had to be done. Sy would never ask Susie to give up her work. He knew the price she had paid