[Chojin]

I agree with all of that, MJ. Core exercises - especially Squats, Deadlifts, Bench Press, and Chin-ups - are so important that you can basically just do those exercises and nothing else and get some great results. When I'm putting together a workout plan I like to divide my work into push/pull days and center the workouts around those core exercises (I do barbell rows instead of chin-ups though because I can't go over 2 reps on them).