My attention was drawn to Canadian-born baritone Gerald Finley by hearing (on CBC radio while visiting Kitchener-Waterloo for the Quantum Landscape conference at PI) his rendition of the aria "Batter my heart...", a setting of the John Donne poem, "Batter my heart, three-person'd God," as J. Robert Oppenheimer in John Adams' opera Doctor Atomic, about the creation of the atomic bomb.  A few years back I found the opera, on DVD, to be pretty good, though with some weak points.  Hearing Finley sing it reminds me that this aria was one of the strong points. He has a wonderful voice, clear, ringing at times, flexible but still with plenty of power when needed, and he gives meaning and drama to the words he sings.