I agree that a general conditioning phase is appropriate for most golfers when starting a golf fitness program. I specialize in conditioning golfers and put most of them through a general conditioning phase before moving to the golf specific movements. Just make sure you are doing a pull, squat and push movement in every workout and you will be fine.

I'm a big fan of the body weight squat (no external resistance) and using many variations of this very basic movement to get the desired training effects. Something as simple as closing your eyes while doing body weight squats can improve your balance and general body awareness more than you can imagine.

The possibilities are only limited by your creativity.