Rejoice Christian Software makes some of the best offers on software of any seller that I know about. From now until September 22 they are offering the 12 volume Baker New Testament Commentary software program for the incredibly low price of $49.95. I think you will pay $2.95 for shipping in the USA. This means that for $53 you will have the software program covering all 27 books of the New Testament. These book are written by Presbyterian scholars William Hendriksen and Simon Kistemaker.
The Libronix software program needed to access the books is included.
Even if you have a few of the print volumes you can give them to someone who refuses to use a computer and still have a great deal for yourself.
I do not own stock in this company, and I already have the set on my computer. The deal is so good I am tempted to order again. :-)
Be sure you sign up for the RCS newsletters.