This is the only newer music i have actually enjoyed in a while and even this is a couple of years old.
of course. you can't go wrong with classic slayer.
some good mentions in this thread-
Deftones
Pantera
The Dillinger Escape Plan
Sleep
I don't know if any of you listen to torche but they have some really heavy stuff and some oddly poppy stuff too. One of their heavier tunes.
the first time i saw them was at irving plaza and that place was rumbling.