Billionaire financier George Soros turns 78 today. Hope there's a big party planned (with plenty of champagne on hand for Alex.) Also celebrating today: Evelyn Lauder, philanthropist, socialite, and the wife of Leonard, celebrates her 72nd. Civil rights lawyer Donna Lieberman is 60. Harper's editor Roger Hodge will be 41. Screenwriter William Goldman is 77. Casey Affleck is 33. Football star Plaxico Burress turns 31. Publishing heir Robert Ziff is 42. Jeffrey Beers, the restaurant designer behind China Grill and Japonais, turns 52. Nina Zagat celebrates her 66th today. And both Pete Sampras and actress Rebecca Gayheart are turning 37.