There's a new "super group" touring the U.S. right now called WPA. They're a little county, a little bluegrass, a lot Americana, really good but hard to classify. Anyway, they're worth a listen. There's a lot of great musicians that play with the band but the core group is Glen Phillips (Toad the Wet Sprocket), Sean Watkins (Nickel Creek) and Luke Bulla (Lyle Lovett, Jerry Douglas Band).
My favorite song is "Always Have My Heart" but I'd like to know what everyone else thinks. You can stream their whole album off their website (the direct link to the player is: http://wpamusic.bandcamp.com/). Like I said, worth a listen, it's nice, relaxing music.
(P.S. I'm posting this same thing on the Americana forum because, again, they're a little bit of everything!)