my back workout was revamped this year, and it did bring me some much needed size, but I still need a lot more. One week I deadlift heavy(ie550lbs for 6 reps), then follow with pulling and rowing stuff. The opposite week, do deads, just concentrating on width. The exercises I've been rotating between are weighted chins, cable pulldowns, hammer strength pulldowns, rows, etc(my gym has 8 hammer strength back machines), cable rows, t bar rows, etc
This is my current split
day 1 chest/calves
day 2 back/shoulders
day 3 rest
day 4 bis/tris/calves
day 5 quads/hams/abs
day 6 rest
My leg routine was simplified this year, and it really worked.
squats 2 sets 5-10 reps
leg press 2 sets 8-10 reps
hack squat triple drop set
I really concentrated on adding weight to the exercises, and it workes as I put 1.5" on my quads in 8 months