Here are a few exercises to try that should challenge you pretty well. Try them out and add a whole new dimension to your workouts and golf game.
Squat Cable Pulley Row: Grab a cable pully with one arm. While holding the pully, squat down to a 90 degree position and hold. While holding, perform 10 reps of the one arm row, using a smooth tempo. After you finish those 10 reps do the other arm. Rest 1 minute and repeat for 3 sets. Excellent for the shoulder complex, the entire back and especially your legs.
High Cable Cross: While this is a classic bodybuilding exercise, it is also probably one of the best for your stabilizers and rotator cuff. Standing between a high cable pulley system, grab a pulley with both hands. taking a staggered stance, bring the pulleys down from the high position and cross in front of your body. Perform 10 reps, rest a minute and repeat for 5 sets. Incredible exercise to develop those muscles that transfer the power developed in your core to your hands and eventually the club.
Straight Arm Pulldown (Side): From the same position you use to start the High Cable Cross, bring your arms straight down to your sides so that your hands touch the side of your leg. Bring your hands down quickly and return to the start position slowly. Perform 10 reps, rest a minute and repeat for 5 sets. Same basic benefits of the High Cable Cross, but just works muscles from a different angle.
You will notice that most of these movements are pulling movements or some kind of derivative movement. The golf swing is basically a pulling movement, so these basic exercises should help you develop more power and have you hitting farther in no time.
As a Certified Strength and Conditioning Specialist (CSCS) by the NSCA, Jason Krantz's focus is on significantly improving the power levels and injury resistance of all golfers. He specializes in power enhancement and all related components of improved golf performance. For more information on how Jason can help your game visit http://www.sonicboomgolf.com
You can also try out the Virtual Launch Monitor at http://www.sonicboomgolf.com/virtual_launch_monitor2.php This tool will show you how altering different variables involved in producing distance will affect how far your ball will travel and will show you how you can maximize your distance off the tee.