If you find yourself interested in the life of Pope John Paul II, the place to start is George Weigel's stunning biography, Witness to Hope. It stands, with William Manchester's The Last Lion, as one of the two best biographies of the last century.
If you can't get to a Border's to pick it up, you might want to start with two articles Weigel wrote about the Pope several years back.
In "The Mobile Pope", Weigel explains how John Paul II modernized the papacy. In "The Holy Father in the Holy Land", Wiegel travels with the Pope to Jerusalem and the Middle East. Amazing writing.
11 hours ago