Updated October 1997 - Require minimum withdrawals using IRS life expectancy table. At 70 1/2 you are forced to withdraw the minimum. Also now adds 10% withdrawal penalty for before 59 1/2.
Since the mortgage calcuator is so popular, I put together a form that does another calculation I find important, finding out how much to put away tax deferred to get a certain amount of money in the future, and how much you could expect to draw out of that money. Just put in some numbers to see what I am talking about!