i thought i'd let everyone know about this. i picked these up a couple of weeks ago for $30, and now they're only $25. most places sell them for $50+.
they work perfectly with my pre. there is a mic built in, and the button controls the music and the phone. and they sound darn nice. good stuff, all around, but at only $25 you can't miss.
UE 200v - $25 @ Amazon