Just a little about the songs I have up to this point. The only originals I have right now are Craters and Iceberg. The rest are covers, and are as follows:

Such Great Heights - Postal Service. My version directly models the Iron and Wine version, found on the Garden State soundtrack.

June on the West Coast - Bright Eyes. Again, directly based on Oberst's original (from Letting Off The Happiness), this is a very meaningful song to me.

Roll On - Josh Ritter. Just fun as hell to play, beautifully written. I changed the pitch and the tempos from the original, as well as the pattern for the chorus. From the excellent album Golden Age of Radio.

Girl in the War - Josh Ritter. Not up now, but I am mixing it at this very moment. I strumed instead of picked the tune, and of course it is extremely stripped down. From the album The Animal Years, which you should buy. Because it is really really good. Really.