I found this summary of St. Patrick's life a few years back, and it is such a testimony to the work of God in a life of obedience. I was particularly impressed by the section, Confronting the Powers of Darkness. http://www.joyfulheart.com/stpatrick/pat.htm

I also found this interesting article on how many people were raised from the dead through his prayers. http://olrl.org/lives/patrick.shtml