Metallica, Slipknot, System of A Down, Marilyn Manson, Within Temptation, Stone Sour, Serj Tankian, Rage Against The Machine, Guns N Roses, Disturbed, Drowning Pool, Foo Fighters..... The list goes on.
Black Sabbath's Planet Caravan is my all time fave I think, back when Ozzy was Ozzy!
When I discovered the mighty Loftgroover in the early 90's, who's techno sets included real hard thrash metal, I was in my element!
Loftgroover for ever!