Buxom Anna Nicole Smith has decided to go back to doing what she does best by agreeing to pose nude in the February 2001 issue of Playboy. Smith, who first rose to fame as a Playboy Playmate in 1992 and went on to star in such forgettable films as 1995's To the Limit, has spent much of the past year embroiled in court battles seeking a share of the $1.6 billion estate of her late husband, oil tycoon J. Howard Marshall. Last month, the former stripper made headlines when a 10-pound dumbbell fell off a cocktail bar during a 3 a.m. workout and landed her in the hospital. What's next for the wacky former Guess Jeans model? Your guess is as good as ours.