Quick /lit/ I'm heading to the book store to pick up a bible I need for bible course I'm taking
Id like a Catholic version and the best one
KJV is beautiful and it's literary influence can't be understated but it's not a Catholic translation (though I'm not sure why a Catholic couldn't use it tbch).
The Douay-Rheims is sort of the Catholic KJV, it uses similar-sounding language.
If you want something with more contemporary English you can get the RSV-CE, RSV-2CE, or NRSV-CE. They're all based upon the Protestant RSV with some little revisions here and there. Pope Benedict XVI's works (translated in English) cited RSV-based translations a lot I think.
You can also get more hipster translations like the Knox Bible which is based on the Latin Vulgate.
Personally I have the RSV-2CE (pic related), it even has neat iconography on the cover.