It is doubtful that I could be considered a Bible Scholar, but I do have an opinion.
The NIV is, in my opinion a very good modern translation. I used it and nothing else for 20 years. The translators were mainly Evangelicals and it's intended for Evangelicals but in my humble opinion it is still readable and accurate. As for the Scofield notes, they are Dispensational. In the almost 100 years since the Scofield has been around, it has sold probably more than any other study Bible. I have several Scofields and really love them but not everyone appreciates the Dispensational notes. Again, the Bible you have is in my opinion, a solid translation with solid notes.
The Holman Standard mentioned by another poster is another modern translation and like the NIV the New Testament uses the NA/27 greek text. It is a very good translation similar to the NIV in style and translation phlosophy. The publisher, Holman is the publishing arm of the Southern Baptist Convention. The main reason for it's existence is so that the Southern Baptist Convention could own the rights of the translation that they use for their Sunday School materials instead of paying Zondervain corp royalties for using the NIV. This is not a critisism of the HCS translation, it is a good Bible.
The New Jerusalem Bible is also a modern translation, an update of the Jerusalem Bible. The Jerusalem Bible had translation problems, it was an English translation of a French version. However, The New Jerusalem Bible is also a good translation. It is also a Roman Catholic translation and the notes reflect Roman Catholic theology however sometimes it is surprizing how honest the notes are with respect toCathiolic theology not having Biblical justification. It is also interesting because the Old Testament uses Yahweh as the covenant name for God the Father. The unabridged version is the one that has the notes and it is expensive.
The New Revised Standard Bible is the Bible of choice for "Mainline Protestant Demoninations". While not a "liberal" translation per se, it is the first choice for liberals. It is, as the name implies, a revision of the Revised Standard Version. In my humble opinion, a better choice is the English Standard Version but it's not a bad version, let me be clear about that.
Ok, now that I have stated my opinions on previously recommended versions, and please do not misunderstand me they are all good. My favorites in order:
1. The New King James Version
2. The New American Standard Bible
3. The NIV
4. The New Living Translation
5. The English Standard Version
6. The King James Version
For Study Bibles, I like:
1. The MacArthur Study Bible (New American Standard Bible)
2. The NIV Study Bible
3. The ESV Study Bible (If you want the most notes and different opinions stated with all the other bells and whistles, a modern translation and don't mind a Bible that weighs 3/4 of a ton, then this is the best study Bible to get in my opinion).
4. The Ryrie Study Bible (NIV or New American Standard) this is tied with the Scofield.
Remember, I'm been an Evangelical for many years and I have a fairly large collection of Bibles, approx. 100 of them and 30 or more are "Study Bibles". Collect 'em all I say.
Tom
On edit- I forgot to mention the NLT study Bble is also good. To the OP, I would keep your Scofield if I were you.