Some good metal bands?

I am very picky when it comes to music. I only like metal, but I can't stand growling or screaming. I have found very few bands that satisfy my musical taste. The bands i listen to are Avenged Sevenfold(the newer albums), three days grace, some Rise Against, Kamelot and some System Of A Down. I have tried Bullet For My Valentine, too much screaming. Are there any other bands out there that fit my taste?