The 2009 Oregon Truffle Festival MarketPlace is pleased to announce its guest chef and lecturers for the upcoming OTF MarketPlace in the beautiful Willamette and McKenzie Ballrooms of the Valley River Inn.Nine of Oregon's finest wineries, more than a dozen artisan and organic providers of craft cheeses, meats, breads and other provisions, a fresh truffle market, and a line-up of guest lecturers in