I just listened to the Esri Data Driven pages free training webinar. And then I promptly updated our City of Helena atlas using Data Driven pages. It was VERY easy to do.
I can see how making section maps using DD pages would be a breeze as well. I would probably use the dynamic text input and label based on Township, Range, Section.
Using the Section polygons (PLSS) as your index layer.
I started something similar to that using the old DS Mapbook - create a section by section mapbook. This was back when we were looking at doing some of the parcel editing work.