If you want something crisp and accurate I second the ATH-M50s.
http://www.amazon.com/Audio-Technica...rasone+hfi-580
Another headphone I've heard great things about (but havn't tried myself) is the Ultrasone HFI-580
http://www.amazon.com/Ultrasone-HFI-...asone+hifi-580
I highly recommend
avoiding Beats and Bose if you are looking to get quality sound for your money.
If you want to get a good source of info on headphones, head-fi is a great website:
http://www.head-fi.org/a/buying-guid...by-price-range