From Madame de Pompadour, the famed mistress of Louis XV, to Pamela Harriman, who married into the English aristocracy and the American plutocracy, there is a rich history of women who have found glamour and wealth in the arms of a billionaire. But contrary to what you may think, fortune hunting is no idle pursuit. Like diving for treasure, it's a real job. Some women strive to be CEOs; others prefer to wed them. You'll meet today's dazzling successes...