I've been listening to Sigh No More by Mumford & Sons quite a bit recently. It has been really refreshing. It's not often I come across a group that pulls together four non-standard rock instruments, tight and subtle harmony, and lyrics that speak to life uniquely.
I find it very difficult to pick favorite songs ... it's an album full of them. Awake My Soul is probably my favorite and has accompanied me on my drive to the gym a few times already.
If you have not heard this band ... please do yourself a favour and check them out.