I use Skullcandy Titans that cost twenty bucks on ebay. Noise cancelling and sound great. Prove to me that you can tell the difference in highs / lows, bass, treble while riding at 70 mph. I have a nice set of Grados for at home.
Currently riding: FZ1, XR650R
Previously riden: CBR954RR, 2 x 919 Hornet, FT500 Ascot