Just remember this about predictions of the end of the world: when it's today in the US, it's already tomorrow in Australia.
Speaking of prophets of the apocalypse, i forgot to mention yesterday the Prophets of the Fundamentalist Church of Jesus Christ of Latter-Day Saints, an off-shoot of Mormonism. Rulon Jeffs predicted the end of the world would come some time between 1990 and 1997, and later he predicted the year 2000 as the big one to watch. When he died in 2002, his son Warren took over the position of Prophet, and all but two of his father's many wives (the actual number is unconfirmed but is quoted anywhere from 22 to 75). Today, Warren is on the FBI's 10 Most Wanted, right there next to Osama Bin Laden. There's a $100,000 reward for information leading to his arrest, on various charges relating to sexual misconduct with a minor and statutory rape.
These, then, are your prophets. You wouldn't trust these people with your children, why trust them with your future?