SirNickity:
I have never heard of Steampunk music, but I am intrigued. I really like the Myst soundtracks. If it's anything similar, I think I found a knew genre to heart on Internet radio stations.
I tend to not follow most music (except the stuff done at renaissance faires, which is mostly irish inspired), but many of my steampunk friends think Abney Park (http://www.abneypark.com/) is one of the main steampunk bands.