My reflections on Romans are now ended. I should point out that the last few posts on Romans are my own reflections, and may or may not reflect the content of the taught module.
For completeness, I can reveal that the Romans module on the HTC course (a Level 3 module) is taught by Dr Michael Bird and is split between exegesis of key passages (for which the main textbook is Moo's or Schreiner's commentary) and Wirkungsgeschichte (for which the textbook is Greenman and Larsen's Reading Romans through the Centuries). Needless to say, another excellent module. I should also note that I found Jimmy Dunn's two volumes on Romans in the Word series extremely helpful. If you want to own and use one commentary on Romans, I can't help you. My solution is to own and use two: Moo and Dunn. And to borrow others!