Joined A Gym -- committed

We moved to FL in 2009 and I haven't taken serious steps to get fit and shed pounds.  Finally, on April 2nd I made the commitment and joined a gym.  I need to shed 70 lbs to be healthy.  I'd like to shed a little more but I'll start there.  3 days a week is my goal, no less than 2 when occasionally our calendar gets booked up.