If you like This Side, you may also like the self titled Nickel Creek SACD.
Another "Who woulda thought this would sound so good" recommendation is Seal 1991-2004 DVD-A. I am not a Seal fan, but that SACD sounds terrific. It has high res 5.1, 2CH, Acoustic Versions, and they all sound amazing.
Don't miss the SACD "Not All Who Wander Are Lost" by Chris Thile, the mandolin player/singer of Nickel Creek. Dazzling acoustic instrumentals and great sound! The third NC CD "Why Does the Fire Die" is not in SACD and is musically not up to the first two, IMO. The band has begun and indefinite break from recording/performing together.