How's this for a start? It's a particularly moving and uplifting piece I downloaded from his site a couple years ago (yep, longtime lurker).
I found an even more beautiful song here in one of his friend's blog (streaming only though...much appreciated if anyone knows how to "rip" it from the site):
Also inside: some nice anecdotes about Reuben and a sweet pic of him playing on what looks like a stage.
UPDATE: The friend was kind enough to send me the file (also said he didn't think Reuben had the song on his site...well the site's back up, so we'll be able to check...):