Well, right now I'm mainly listening to post-hardcore (such as Hopes Die Last and Adept) and metalcore (such as More Than Life and too tired to think of any others right now).
Used to listen to lots of death metal, went from that to melodic death metal (Children of Bodom) and Gothenburg metal (In Flames, their older albums (although I do like pretty much all their albums)) and it all probably started when I was a kid and my dad was playing old hardrock, like Deep Purple and Saxon and all that :P
Also listening to punk, hardcore-punk (and I'll just throw in Raised Fist as an example here) and punkrock. And basically everything where they can mix clean vocals, screams and making everything sound good together.
And the most important thing; trallpunk (edit: which I just found out is called for "melodious punk" in English). It's awesome.
Definately NOT metal, not even close, but hey - give it a shot. You'll probably not understand sh*t of what they're singing, but it's about how crap mondays are.
Short answer; yea, I'm a metalhead who also listen to lots of punk (although, since post-hardcore is sub-genre to metal then hardcore-punk shouldn't really be too far away either).
And no, I do not consider techno/dubstep/electronic hardcore worthy of my precious ears.