Yeah, I actually discovered them in HS from an old girlfriend who for some reason LOVED Rockapella (seriously, they were her favorite band ever! I never even knew that they were a real band, I just remember them from Carmen San Diego!) And they had a cover of Tempted. It was a few years later that I really got in to EC and found the connection through him.
You suggested Argybargy to me a while back (based on me liking Pulling Muscles) and I've listened to it a couple times since then but it hasn't grabbed me yet. Nothing has struck me the way Pulling Muscles has, but familiarity counts for something with music so I keep listening. It's all about getting to know the music, I guess. I do like it but haven't fallen in love or anything like that yet.