I highly recommend Waiting for God: The Spiritual Explorations of a Reluctant Atheist, by Lawrence Bush.
This is more of an intellectual memoir than a comprehensive argument, and that’s exactly its merit. Bush comes from a background where New Age and liberal Jewish spirituality are the most prominent alternatives to nonbelief, and he details the very real attractions of such views as well as explaining why he remains skeptical of any sort of supernatural reality. The ambivalence about secular humanism he expresses throughout the book is also valuable. Bush is well aware of the weakness of Enlightenment atheism in matters of community, identity, and therapy, and he thinks these are important issues to be faced.