This Saturday, Peter is broadcasting his radio show from The Ritz Carlton, Dove Mountain, in Marana, AZ, near Tucson.

– Jason Reitman, director, writer and producer, discussing his new film Up in the Air as well as the ins and outs of frequent airport travel;

– James May, CEO and president of the Air Transport Association of America, discussing the five biggest challenges facing the airline industry in 2010;

– Yvonne Morris, executive director of the Pima Air Space Museum & Titan Missile Museum, discussing the museum’s fascinating aircraft exhibits and ham radio;

– Joy Bauer, nutritionist, author and health expert, discussing her new book, Your Inner Skinny, and sharing secrets that can make dieting simple;

– Ed Honea, mayor of Marana, sharing stories about the people and culture of Marana as well as some of his favorite attractions;

– Robert Reid, U.S. travel editor for Lonely Planet, discussing the new Lonely Planet guidebook, Best in Travel 2010, including his picks for next year’s can’t-miss destinations;

– Paul Lawton, film historian and author, sharing the highlights of Old Tucson Studios and Tucson’s role as America’s Hollywood in the desert;

– Mike Boyd, president of Boyd Group International, sharing his insights as to how American carriers are surviving financially and what it means for passengers;

– Chef Joel Harrington, chef at The Ritz-Carlton, Dove Mountain, talking about the unique flair of Southwestern cuisine and how to capture its many flavors;

– Sean O’Neill, blog editor for BudgetTravel.com, giving his picks for the 10 best value destinations of 2010;

– Travis Nabahe, CEO of The Tohono O’odham Nation, discussing how the culture of the Tohono O’odham Nation has survived in a society that constantly presses for change.