For the pros, finding the right caddy can mean the difference between winning and losing tournaments. Indeed, these guys aren't just bag boys; they earn serious cash while toting those clubs to the tee.

Here are the top 10 earning caddies on the Professional Golf Association (PGA) Tour, according to data from the Professional Caddies Association and the PGA. We determined our figures by tracking June 2006 to June 2007 tournament purses and player finishes, as reported by the PGA. Caddies are paid on the basis of how well their player performs: a base salary of $1,000 a week plus 5% of the tournament purse, 7% of a top 10 and 10% for a victory, according to Cone.