Have you heard of the ECT; The Evangelicals and Catholics together? It is a document signed by many Evangelicals and Catholics which stresses where the two faiths can agree, but what are the real differences and are they still important? This book documents the beliefs of the Reformers (Protestants) and the official beliefs of the Roman Catholic church.
This book is very thought provoking and a good way to educate yourself.
James White is one of those authors with whom I have some doctrinal differences, yet this is a good book.