Meeting Junkie,
I'm Catholic so I have the New American Bible (Study Bible) because it's the one approved by the Church for use in the liturgy. They approve other bibles for use, like Jerusalem and Douay Rheims, but like to have uniformity in the liturgy. Unfortunately, I still have the NWT in my head, so I'm trying to read the same bible that I hear in Church in hopes it will replace the JW tapes in my head!
I really enjoy the study guides to the bible and to each book of the bible that is in the NAB. About half of the entire NAB is actually background, footnotes, and study material. I've learned a lot from them and, amazingly, they quote sources so you can do actual research in documents NOT produced by the Catholic Church. Imagine that.
I've also taken some classes on scripture through University of Dayton and my husband has taken some at Miami University (in Oxford, OH) and didn't find any conflict with the NAB, even though one of the classes my husband took at Miami U. was given by an evangelical scholar who edited several of the OT books of the NIV! (His name is Dr. Edwin Yamauchi.) Another class he took was given by a Jewish woman and it was about the Hebrew Bible. So far, we've not discovered any academic or scholastic problems with the NAB. I'm very antsy about that, given my experience with the NWT.
I'm jealous you found yours cheaply. My husband paid almost $100 for mine as a Christmas gift back in 2002.