In this edition of our weekly look at celebrity real estate news, rumors, conjecture and publicity plants, a whole bunch of wild stuff! They say spring is when the housing market really picks up, but our boldface friends are year-round operators. Our pre-Christmas sightings include Judge Judy snapping up an Upper East Side pied-a-terre with plenty of closet space for her robe collection, a Tiger Woods mistress (#4) eying Union Square, Marc Jacobs taking up temporary digs in Chelsea while his new townhouse becomes presentable, Oliver Stone renting then buying in the West Village and appearances from lovable characters like Michael Hirtenstein and, we couldn't resist, Marty Markowitz!