The top two floors of a Century City residential tower still under construction have been sold for a record $47 million to Candy Spelling, the widow of TV mogul Aaron Spelling. A $47-million price tag may seem like an enormous sum, but this is all about downshifting in the fast lane. After all, the 62-year-old heiress with a reputation for embracing opulence will be moving out of Los Angeles County's largest home -- a 123-room, 56,500-square-foot mansion on six acres in the Holmby Hills neighborhood off Sunset Boulevard. Her new home will be less than a third the size of the old one -- just 16,500 square feet -- but with a killer 360-degree view spanning the horizon from downtown Los Angeles to Santa Catalina Island. The condominium building called the Century is going up next door to the Century Plaza Hotel on Avenue of the Stars and will be completed in late 2009. ...