Heard these guys a few times on XM's fabulous music channel the Loft (which, frankly, is why I'm listening to fewer podcasts ...), and I want to promote them my own self 'cause they're so great:
The Guggenheim Grotto are *terrific*. You can hear / download a few songs from their web site, and their CD "Waltzing Alone" is on iTunes & eMusic. You can't buy their CD in stores, yet, as they only just signed with a record label.
If you like Winterpills and/or Kings of Convience, you'll like these guys too.