The Ancient Christian Commentary Series (ACCS) from InterVarsity Press is one of my favorite in-process commentary series.
The first installment of the electronic edition of the ACCS, known as Volume 1, is now available. Twelve volumes of patristic power, arranged like a commentary, at your fingertips. I’m pretty stoked about this one, it is like having a selected reference index to the church fathers.
These volumes have excerpts from fathers cited in the Schaff edition (which Logos also has available in its entirety), but they are by no means limited to that well of wisdom and insight. Other lesser-known fathers are quoted too. Many of the quoted materials are provided in new translations.
If you’re interested in looking into how the early church interpreted and applied Scripture, then you should consider how this set might help you in your study. More information is availble on the series at the ACCS web site.