hold tight glice still reppin from day. all those tunes are classics pure and simple
so solid crew have serious tunes - including one of the first dubstep tunes ever:
http://www.youtube.com/watch?v=doMX6su9Ue0
so does sticky actually - haven't followed him lately but i know he had some sick funky tunes a couple of years ago.
as for the first non-British dubstep artist... Joe Nice started DJing in 2002 so I guess he must have been the first American dubstep DJs, so probably him. in terms of producers, DJ Abstract was not really pure dubstep all the times but he released Touch in 2003 and I'm pretty sure he was from the US as well
it's mad how everything even remotely connected to the hardcore continuum (i'm excluding brostep as it's too far removed from it nowadays) is always awesome. i'm all about grime and funky this week