rationalskepticism.org

I don't mind a bit of Deftones.

[youtube]http://www.youtube.com/watch?v=0ynvK1oKTrc[/youtube]

[youtube]http://www.youtube.com/watch?v=VZF9vXeX_nQ[/youtube]

And Metallica:

[youtube]http://www.youtube.com/watch?v=XX-KjkdDozQ[/youtube]

[youtube]http://www.youtube.com/watch?v=JgiGrXpOhYg[/youtube]

[youtube]http://www.youtube.com/watch?v=WEQnzs8wl6E[/youtube]

And I remember this album being pretty good:

[youtube]http://www.youtube.com/watch?v=3voawEb6Xgw[/youtube]

I find myself going off metal a bit lately though.