THE FIFTY-- Mark Vos' 7,000 chip stack appears to be the shortest, at least in this room, though he seems rather unfazed by it. Since he doesn't have the stack to construct one of his typically elaborate chip edifices, Vos has been thumbing through a copy of a newspaper called "The Daily Sport" for the last several minutes which, apparently, includes a slew of photos of topless ladies in the advertisments in paper's back pages. He seemed fixated on one particular buxom blonde...