Let's say you thought it would be pretty neat to climb Mount Everest. You find two "how-to" web sites that explain what's involved. One details a tough training regimen, spells out all of the financial costs, has a serious conversation with you about the risks, and gives you a complete list of the gear you'll need to maximize your chances of a successful ascent. Another tells you that since you go for a 20-minute run every day, you'll be totally fine. Nah,