I've been a long-time listener to Speaking of Faith since I discovered in on WYPR in Baltimore. I now listen online from Israel where I'm in rabbinical school. I suggest that you do a show about Rabbi Adin Steinsaltz. He is arguably one of the greatest rabbis alive today, and unarguably one of the most prolific. He has translated the entire Gemara from Aramaic into Hebrew, making learning Talmud more accessible, and has written numerous books about chassidut and Jewish thought. He is also willing to be controversial, and make people upset by speaking his mind, something that is all too rare within the Orthodox community today.
More information about text formats