Shure SRH750DJ headphones. They are a little more expensive than you are looking for, but they are over the ear and provide great isolation (Just as good as in

Shure SRH750DJ headphones. They are a little more expensive than you are looking for, but they are over the ear and provide great isolation (Just as good as in ear headphones for sure). The sound quality, especially bass response, just absolutely destroys in ear buds (and I had more expensive Shure in ear buds before that). Stay away from anything by Sennheiser or Bose. Bose is crap, and Sennheisers are nice, but just overpriced. For comparison, my Shures plugged directly into iPod (shitty built in preamp) vs. Sennheiser HD650s ($500 headphones) WITH a $275 preamp (so my $140 setup vs an $800 setup), my Shures won by a slight margin. If not these, anything Shure.