I discovered a great new band (at least for me) called Shearwater. Here is their webpage. Unfortunately, I think I just missed them in SF. Luckily for us, All Songs Considered recorded and posted Shearwater's D.C. concert at the Black Cat. Check it out.
Their new album is called Rook and I just bought it here.
Note: after writing this post, I noticed Dutch Evans also likes Shearwater. Check him out.