I'm no expert but based on a lot of stuffs I read and videos I've watched of experienced lifters, the best way to go is high intensity and low reps if you're natural. Unless you're using roids, doing low intensity and high reps + body part split is not as effective. You're better off doing compound workouts every workout.

Try looking up Starting Strength / Stronglifts / Reg Park's Beginner Routine(this one was used by Arnold) / Ice Cream Fitness Routine. If you still want a split, try looking up PHAT or Westside for Skinny Bastards