Have you found the steel guitar forum? I play pedal steel, and that forum has more knowledge about music and a higher pro-to-amateur ratio than any other I've found. They have a "Non-pedal" section where some builders hang out. Many of the people who play steel work as guitarists, producers, amp builders and such - it's like a piano in that you can use it for anything, but it unfortunately got stereotyped early and hard as a "country instrument" - just like guitar, piano, fiddle etc.(?)
http://bb.steelguitarforum.com/viewforum.php?f=13&sid=386369cb28b1534f40e19685bab8b05f
http://steelguitarbuilder.com/forum/
This was a recent thread with 4 pages of links to non-country playing:
http://bb.steelguitarforum.com/viewtopic.php?t=208507
Oink.
http://www.youtube.com/watch?v=ThmRIUBJj0w&feature=related
http://www.youtube.com/watch?v=u7YI0EbcokU
http://www.youtube.com/watch?v=2vz_1lC51z0
http://www.youtube.com/watch?v=TM7ICFXvpYw&feature=related
http://www.youtube.com/watch?v=o_SUG9wlyvE&feature=related