I just finished reading Radical, by David Platt. I received a free copy through Blogging for Books, a WaterBrook Multnomah program that sends bloggers free books in exchange for reviews. I posted my review here (it'd be swell if you ranked it after reading). You can check out all of my Blogging for Books reviews here.
In short, Radical (and another book with a similar focus, the Irresistible Revolution) completely altered my stupid notions about 'living for Jesus' and what 'being a Christian' should look like. I don't know that I'll really ever be the same. I certainly hope not.