I found countless posts with this same question, but none helped me enough because they set different requirements.
I am looking for some decent in ear headphones for around $100 (on amazon, including Black Friday sales). I listen to metal, rock, and some dubstep now and then. I normally use Ultrasone HFI-780 at home and checked out Ultrasone's in-ears, but they were well beyond my price range. I want these for use at school.
The models I'm most interested in from reviews I've read are the Etymotic HF5 and Shure SE215 (postive and negative reviews for this one though).