If you don't already subscribe to the KEXP Live Performances Podcast, now's the time. They've got SXSW performances up from Earl Greyhound, Ghostland Observatory, Apples in Stereo, Peter Bjorn & John, Beirut, and many other great shows, including this performance from Okkervil River, with essential versions of The President's Dead and Okkervil River Song.
Okkervil River, Live at SXSW on KEXP, 3-16-2007 (mp3s):
The President's Dead
The Latest Toughs
Life Is Not A Movie
Okkervil River Song
Own Black Sheep Boy: Definitive Edition.