I just saw a movie on Netflix called "Forks Over Knives". A VERY convincing movie that could change lives. If you're inclined to poo-poo the vegatarian thing, just watch at least 25 minutes of it. The most compelling statistics are from The China Study.
http://movies.netflix.com/WiPlayer?movieid=70185045&trkid=4213507
http://www.amazon.com/dp/1932100385/?tag=googhydr-20&hvadid=5693026361&ref=pd_sl_37gdft47se_b(nl)