I don't see how you could go wrong with the KJV. That version is defended as inerrant by virtually all fundies, and it is also the one that secular critics regard as, in terms of literature, the most satisfying.
I would suggest you keep a copy of
Asimov's Guide to the Bible handy as you read. If you come upon passages which are confusing, you can refer to it for commentary. Asimov was an atheist, but his treatment of the bible is fair and was not intended to denigrate it in any way. Many Christian scholars have a high regard for Asimov's guide. It's a large book; if you don't want to buy a copy you should be able to find it at your library.
The Catholic Bible is a bit larger than the Protestant versions. It contains some OT books and portions of books which do not appear in Protestant versions. At the time the Canon was closed (in the 4th(?) century) these books were added to the accepted Jewish OT. Catholics refer to these accretions as the Deuterocanon. Protestants, following Luther, reject them from holy scripture and refer to them as the Apocrypha.
EDITED to correct wording (1x) and capitalization (1x).
[This message has been edited by berberry, 03-23-2004]