“6, 5, 4, 3, 2, 1!” Maybe watching the countdown, you were thinking of a countdown of your own.  Making 2009 the year you drop a size, drop some weight, feel strong and healthier.  Maybe you’re thinking about joining a gym. You’re not alone.  And, when you get to the gym, you’re really not alone.  Everyone’s on the elliptical.  You’re…