Monica Lewinsky is ready to tell all, says the New York Post. The paper reports that the "Sexgate siren" has signed a seven-figure deal with St. Martin's Press to publish a book in February. Her collaborator: Andrew Morton, best-selling Royal biographer, whose Princess Diana book was a sensation on both sides of the Atlantic (and is now being turned into a movie by "The Lion in Winter" producer Martin Poll). In addition, says the Post, it looks as though Monica will be sitting down to talk with ABC's Barbara Walters sometime soon.