The Gospel According to John. PNTC. Eerdmans, 1990.
Excellent and engaging commentary. Carson has a unique ability to clearly articulate very difficult doctrines and texts and make them accessible to the everyday layman. Does not deal with the Greek in very much depth but does delve into it on occasion when it is necessary. Overall a great commentary.
Ephesians. BECNT. Baker Academic, 2010.
Hands down THE BEST commentary on Ephesians out there. He takes into account all recent scholarship on the book of Ephesians (save for Arnold's work released the same year). He does a fantastic job of navigating each text without a bias toward one theological position. Does a very good job of discussing every topic in great detail yet keeps his wording plain and understandable. A very good working knowledge of Greek is required, however, because he discusses it often and it is essential to understand the language in order to understand many of his arguments and conclusions.