Re:Help on back width!!!!
i agree on the straight arm pulldown suggestion - do them kneeling with a very precise execution - 1sec in the stretch position and 1-2 sec static contraction.
i also agree with indie - width from the front can also be enhanced by further developing your medial deltoid.
however, as u described, i think the main problem is in your training style. you're doing heavy compund lifts, which is ok, but won't get your lats really well developed. IMO u should do somekind of lat specialziation and move on to the hypertrophy training area - meaning higher rep range. especially lats are one of those muscle groups whcih respond better to greater fatigue in comparison to heavy compounds.
more isolation work and lat-specific supersets (straight arm pulldown or pullover machine + pulldown) have been doing wonders for me in terms of lat development/width