Justin Timberlake And Cameron Diaz Over

This Christmas season, Justin Timberlake spent his holiday at home in Tennessee, surrounded by his close-knit family, including mom (and one-time manager) Lynn, stepfather Paul Harless and his two younger half-brothers. Cameron Diaz, his girlfriend since 2003, went skiing in Vail, Colo., staying at the Vail Mountain Resort & Spa, with her family. Separate vacations? At this time of year? What's