Hello again David, you're welcome. I started off with a NIV Study Bible, but there were so many holes in the commentary of that Study Bible (which left me with so many unanswered questions) that I started looking for something more, and the two volume commentary sets ended up being the answer (because back then I was not prepared to spent hundreds to thousands of dollars on full commentary sets). Then better Study Bibles (at least for me) were produced (we are so incredibly blessed to have access to such things today

).
One Study Bible that I forgot to mention is the
Thompson Chain Reference Bible (published by Kirkbridge, I believe). It doesn't have commentary like the other study Bibles do, rather, it walks you though the Bible with an extensive chain of references so that you can draw your own conclusions about what the Bible is teaching. For instance, if you want to figure out how the church came up with the doctrine of the Trinity, the Thompson Chain Reference Bible is the Bible for you. It will take a lot more work on your part, but it is somewhat mind blowing (at least it was for me) to discover the Biblical reasons behind our long established doctrines (the ones that all churches within the pale of orthodoxy hold in common, for instance).
I also remember turning to God out of amazement and with thanksgiving and praise (as a young believer) more often than I did with my regular study Bible, because the Thompson Chain references help you uncover things (peel back the layers) in such a way that the heart of the matter is suddenly before you (and you see in a somewhat different way how God has been and is at work in this world and in your life).
I wouldn't want to be without a regular Study Bible (like the MacArthur Study Bible) but if you can afford it, having both, a regular study Bible AND a Thompson Chain Reference Bible, is a great idea (IMHO anyway

).
God bless you!
--David