Some of America's most powerful business leaders are on their way to the resort town of Telluride this weekend. They'll be fishing and hiking in the steep Colorado mountains, and then they'll get down to business. What they want is to convince politicians to spend more money on early childhood education. Hedge fund managers, CEOs and chamber of commerce presidents may not seem like obvious advocates for the expansion of social programs, but they see the issue of preschool in dollars and cents.