Renewed Heart Ministries Podcast
Pastor Herb Montgomery, through his ministry Renewed Heart Ministries, deals with many themes relevant to Adventist peacemakers. For starters, check out his recent podcast that draws on the notable work of Walter Wink -- Renouncing Rights (more podcasts).
His earlier series on nonviolence is quality as well: "The Active, Nonviolence of Jesus" – Part 1, Part 2, Part 3, Part 4, Part 5, Part 6, Part 7, Part 8, Part 9.