Metal + Dubstep

I used to front a Death metal act, and one day i woke up and decided i wanted to produce music and work for myself without splitting the take with four other guys. I started DJ'ing and making electronic music full time, and this year was signed to the fledgling-independent Darkside Records out of Miami. I spin every genre of electronic music, and actually hold top-20 spots via Mixcloud in Metal/Grime.
I've been spinning a LOT of what you're looking for lately. The sub-genre is called "Deathstep" and it's even heavier than what you originally posted asking about. Shit is brutal, and filthy as fuck. Here are some recommendations of relevant artists to look up, as well as a few youtube vids for you. This list will get you on the right track. Most of these guys work together or have similar artists links on their youtube channels.
I hope this is what you were looking for bud. \m/

Code: Pandorum
Moth
Bratkilla
Mantis
Cruel Reaction
KRAM
Auburn X
SubOxyde
Dack Janiels
Nnokt
Lord Swan3x (aka Lord Swan3x & Soberts)