KRT BOOKS STORY SLUGGED: LEIBOVITZ KRT PHOTOGRAPH BY CHARLES TRAINOR, JR/MIAMI HERALD (SUN-SENTINEL, SOUTH FLORIDA OUT) (KRT12- January 12) Annie Leibovitz holds the photographers' strobe on a sand dune on South Beach. Her most famous phoographs are of famously rich people, but she is a chicken-soup kind of woman who gets nervous when she's on the other end of the lens. (MI) AP PL KD (Sq) (lde) -- NO MAGS, NO SALES --