Lately my back workout looks like this:
Chin ups - 3 sets of 12-15 reps adding weight when needed
One arm DB rows - 3 sets of 10-12 reps
Close grip underhand pulldowns - 3 sets of 10-12 reps
Db or Maching pullovers - 3 sets of 12-15 reps (optional)
Clean & Jerk, Power Cleans, Hang Cleans. I choose one of these three exercises each week as my first movement. I do 4 sets of no more than 3 reps and try to hit 80-90% of my 1RM only if my body feels good.