If you've never seen Fr. Corapi's "Personal Testimony" it is well worth watching. This is a condensed 10 minute version. Long story short he went from a Los Angeles millionaire, to drug addicted street person, to a Catholic Priest. Think you're not worthy enough to be a priest? What man is? But after hearing Fr. Corapi's story, odds are you won't feel so unworthy.
I had the pleasure of seeing Fr. Corapi years ago and getting to talk to him briefly. What an incredibly gifted speaker. His talks for seminarians and priests are outstanding, you can order them on CD at the links below:
By the way, for those who don't know me personally, despite the pictures, the beard is unfortunately gone.