My education continues! Many thanks to Bernard B. (http://500px.com/BernB) for the quick tutorial on how to correct for lens distortion in Adobe Lightroom, very useful. Here are the results of my first attempt at using this amazing technology.
This raises an important question though: How far is too far when it comes to striving for technical perfection? At the end of the day, there's a human being operating the equipment after all.