Used Aliph Jawbone Bluetooth headset $100 + shipping.

Included: all hardware that comes in the box (wall charger, USB cable, ear pieces, ear clasps and headset).

Bought at an AT&T store for use with my iPhone, turns out I don't use it. It's been sitting charged for over a month, and I never use it, so I figure someone else might as well get a good deal on this.
I have packaged it back up in the box, so it looks basically new. No marks scratches or any defects, works perfectly.

This headset has won awards as the best out there, check out their website for more info: http://www.jawbone.com/