There are at least 8 Bible translations in print that are either original or modified as Catholic versions (officially approved by the Magesterium)
The New American Bible was first published around 1970 and was chosen by the USCCB to be the version for use in the Liturgy. It is a word for word translation.
The Revised Standard Version Catholic Bible is a version of the RSV which was published in 1946. What historically was called the 'Protestant bible", King James (Authorized) Bible was revised in 1906 to modernize the language and included changes that resulted from extensive bible scholarship. That version was called the American Standard Version. Yet again in the 1940's scholars came together to revise or update the text as new biblical and linguistice discoveries had arisen and to produce a literal, word for word version that would be more amenable to the English used of the day. Hence the Revised Standard Version. Later that version was revised again to use gender inclusive language. That is the NRSV (New Revised Standard Version) Both latter transaltions have been secondarily revised to be 'Catholic' by the inclusion of those books of Hebrew Scripture that are Protestants removed from the Canon. To muddle matters more the Eastern Orthodox have a couple of extra books that RC and Protestants omit.
Virtually all modern versions of the Bible are the products of Catholic, Protestant and Hebrew scholars working collaboratly.
Subjectively - in my personal opinion and that shared by all of my orthodox Catholic scripture professors - I prefer the RSV do to its more poetic language vs. the NAB which to me has brutalized our English language. Just my opinion for what it's worth. ;-)
You might want to try a parallel bible that prints the texts of multiple versions side by side and explains ahead some of the main and not so main differences (See below) Hope that helps!!
The Catholic Comparative New Testament. Oxford University Press. copyright 2005. ISBN 0-19-528299-X This has 8 Catholic versions of NT only.
The Complete Parallet Bible. Oxford University Press. copyright 1993. ISBN 0-195283318-X This has four translations complete with apocryphal/Deuterocanonical Books of Old Testament. Included are New Revised Standard Version, Revised English bible, New American Bible and New Jerusalem Bible.