Tyson Foods ( TSN) upgraded at Wachovia to outperform. The week dollar's effect on exports, growing U.S. population and recent closing of a competitor facility are conspiring to restore beef margins toward historical levels. XenoPort ( XNPT) coverage initiated at Goldman Sachs with a buy rating. See XP13512 as a possible blockbuster with positive phase III results, and potential to launch in 2009. Also note proprietary platform to improve drugs at low risk. Price target at $60.