Here's a modern day compilation worth a listen. "Songs of the Civil War" is a nice set of songs as played by current artists. Don't expect period picking or singing, this qualifies only as an event psych-up CD. It does a great job of being just that, though. There is no slickness to the recordings, which kind of gives this CD a homey and quasi-authentic feel. The only gripe I have is the Ashokan Farewell -I love the song, but I just feel its way over-used.
After giving the once over, I recommend this one for the reenactor who needs a fresh CD for those long road trips.