The quickest way to land a book deal? Become besties with Gwyneth Paltrow, obviously! A month after Gwynnie's bikini waxer inked a deal with Penguin Books. Now comes word that Tracy Anderson, the personal trainer Paltrow shares with Madonna, has landed a six-figure deal of her own with Grand Central Publishing. So if you can't afford the $900 a month membership fees to Tracy's gym, or even the $200 workout sessions she's offering at a depressing Midtown hotel, you'll be able to take advantage of her wisdom in a slim, paperback volume. Best of all, you won't need to exercise your body or your brain doing it.