Richard Rohr is a Catholic priest and a Franciscan Friar. He is well connected and respected across Christian traditions (including the emerging church), so he seemed like the perfect person to speak to about what Protestants can gain from Catholic spirituality.
Richard’s latest book The Divine Dance is a must read. Over the years, I’ve also really enjoyed Immortal Diamond: The Search for Our True Self, Everything Belongs: The Gift of Contemplative Prayer, and Falling Upwards: A Spirituality for the Two Halves of Life. – Tim