I'm looking for a pair of full sized headphones for around $100. I guess you could describe my sound preference as exciting, with detailed highs and good sounding vocals. I also like a good bit of impact, not necessarily bass volume- too much rumbling bass will make me sick- but I like to be able to feel the drumbeats well. I mostly listen to rock, pop, electronica, techno and anything in between. Also, I'd rather not use an amp, as I don't want to be spending much more then $100. These will be going into a Cowon J3 as my source, and probably nothing else. After looking around and reading, I've narrowed it down to the Audio-Technica M50 and the AKG K-240, but I'm open to other suggestions. Thanks!