Great stuff SYL. I will admit that I probably do all the wrong things for the lat pull downs and rows, ie useing my body for momentum and then using my biceps. This description how to better excercise those muscules that you are actually trying to hit is great. I can't wait to get into the gym tomorrow and try them out.
I have to admit I can't wait for what's next your series.

Legs, shoulders, triceps? Bring it on!
I wonder if someone could create a sticky linking to this series of articles by SYL, they've been very informative thus far.