My favorite heavy american band, current. Avenged Sevenfold. This song is awesome. They combine some heavy screaming with good singing/lyrics. I guess in his most recent albums he quit his trademark screeching/screaming because he was blowing blood vessels in his throat.
Avenged Sevenfold - Unholy Confessions (video)
http://www.youtube.com/watch?v=dIStCRrtToM
rammstein-rammstein
Band and song, named after the air show disaster. Lyrics in german, quite grim.
Rammstein here, in concert, and what a show they put on. I own DVD of this and the last, Volkerball. They are awesome..
If you love pyrotechnics...
http://www.youtube.com/watch?v=vp9z-9RdwwM