Logos software are selling an electronic version of the the ESV study notes for USD 30 (approx AUD 35). Just the notes - for the ESV Bible, see here . The notes provide as good a commentary as any other (with all the normal caveats of a commentary - only the word of man, not a substitute for reading the Bible yourself, etc etc), and this seems a cheap way to get hold of it. Incidentally - just in case anyone's wondering - I have no personal or financial interest in either Logos software or the ESV.