Continued from the thread in Metal Reviews.com forum...
Start with Discharge, who released the best pre-thrash Thrash album ever with Hear Nothing, See Nothing, Say Nothing, and work from there! You should dig Amebix, think a fairly slow-paced yet a bit thrashy Killing Joke. Crass are much more punk and quite experimental, but a great band nonetheless. Flux Of Pink Indians = punkpunkpunk
Discharge for those wondering what the fuss is about:
http://www.myspace.com/dischargepunks
http://www.myspace.com/discharge2k (the current incarnation of the band, nowhere near as good of course)
Amebix:
http://www.myspace.com/amebixuk
Crass: (go from the second song down)
http://www.myspace.com/whatwasoncecrass (I presume it's the official one, hard to tell)
FOPI:
http://www.myspace.com/wedontwantyourprogress