Just added to the thousands of resources for eSword bible software at Biblesupport.com : Dr. Thomas Constable’s 12 volume, 7,000 pages of Expository Notes on the Bible. Brief, fairly accessible discussions at the verse, chapter unit (2-3 chapters usually), and book level, these are the notes Dr. Constable has used in Bible classes, in various editions, for years. He himself describes them as somewhat more in-depth than a study bible, but less technical than the typical commentary. It includes many well-chosen quotes from more technical commentaries.
In short, these notes are an excellent choice for lay teachers and students of the Word.
Available for free download for use in esword version 9 and higher here.