Black's commentaries has some notable titles and is part of the the 50% off sale. You can buy them individually which isn't something you can do with many of the better commentaries. Although I have several good commentary sets, I couldn't pass up 1&2 Corinthians and Philippians. I am also considering 1&2 Thessalonians, James and 1&2 Peter & Jude. These I mentioned have a pretty good rating by Best Commentaries. Any thoughts or experience with these volumes?