LEVITTOWN, N.Y. - In 1951, 7-year-old Louise Cassano couldn't imagine a better life than the one here, where she rode her bicycle past rows of cookie-cutter houses, kids held backyard campouts in makeshift tents and nobody locked their front doors. "It was an absolute ideal community," said Cassano, whose love affair with Levittown never waned - she still lives in the Long Island town dubbed by some as America's first suburb.