I'm very into old school reggae. Roots, dub and ska are my favorites. I've got almost as many reggae records as I do techno records. I'm not going to list any because it will turn into a massive list and I don't want to get into that.

Others:
Punk/Hardcore
Agnostic Front
Madball
Biohazard
G.B.H.
Crass
Sick Of It All
Youth Of Today/Shelter
Gorilla Biscuits
Quicksand
Helmet
A.P.P.L.E.
the Crucif*cks
the Circle Jerks
MDC
Black Flag
Christ On Parade

Metal/Thrash
DRI
Corrosion of Conformity
the Accused
Godflesh
Sepultura
Mastodon
Slayer
Suicidal Tendencies
DETHKLOK

other stuff
I'm also into what we americans call britpop i.e.
Bloc Party
Franz Ferdinand
Snow Patrol
British Sea Power
The Charlatains
Stone Roses
Inspiral Carpets
Happy Mondays
My Bloody Valentine
Bjork
Jesus and Mary Chain
the Mission
Fields of the Nephilim


This list could go on and on and on and on.....