google bks. has IVP background commentary Old/new Testament as an incomplete copy for viewing, but not for download.
http://books.google....stament&f=false
I only support IVP background commentary Old Testament because it is update, and almost all e-sword OT wks. are PD, which means they would have not the latest archelogy and liguistic studies. However, theology is never outdated. God's intent has been clear through the ages.
Michael