Esperanza and Irwin look back at the three lives of Bayberry Land in Southampton.   In 1916, the banker Charles Sabin and his wife, Pauline Morton Smith Sabin purchased these 314 acres for a country home, naming it after the low growing shrub prevalent on the east end.   The estate comprised 8 buildings, including a manor house, garage with chauffer's apartment, gatehouse, caretakers cottage, hunting stable...you get the idea.   The Sabin's lifestyle was as grand as the setting, entertaining New York's Blue Book society, Southampton's summer colony, as well as senators, judges and members of congress.   Come 1949, the property was sold for $131,250 to the International Brotherhood of Electrical Workers Local 3.  The union president is a name familiar to anyone driving the Van Wyck Expressway, Harry Van Arsdale, Jr.  A convalescent rest home, an education center for its workers, as well as a children's camp were just some of the changes made during the Union's 50+ years of ownership.  In 2001, the IBEW sold the property for $46 million dollars to Michael Pascucci, who created a golf course on the property designed by Jack Nicklaus.    Purchasing it at auction for the same price, but unable to consummate the deal was a second buyer, Donald Trump.  Mr. Pascucci in his own words wanted people who were non glitzy, saying it wasn't a valet parking type of place.   Those people however, did have a $650,000 membership fee.