Robert Koons, professor of philosophy at University of Texas at Austin, has also just converted to Roman Catholicism - See his post at Right Reason - It is interesting to see how the new perspective on Paul has contributed to many peoples "re-vision" of justification by faith alone.
Dr. Koons, like Beckwith, is a trained philosopher (a very good one as well) - I am sure many Protestant thinkers may point the finger wholesale at the discipline of philosophy - I hope this is not the case.