I picked up a copy of Searching For God Knows What last weekend at Borders. With a 40% off rewards coupon (courtesy of my friend Steph) and the $10 I had left on a gift card, I got it for free:)
Let me know if you like the Donald Miller (although I'm guessing by your rating it's pretty good). I read Blue Like Jazz a few years back and loved it
Prey...interesting choice. Check out State of Fear, his best book of all. Did you know he just passed away last week?