Last week I picked up a Cardo S-800 bluetooth headset. There are plenty of reviews on it floating around on the Internet, so I won't get into detail. I will say that it does one thing particularly well: it supports pairing and easily switching between two devices. Double-click the wheel and it's switched. I have it paired with my cell phone and my laptop, making it blindingly easy to use one headset for cell and VoIP calls. It also charges off of USB (Micro-USB, unfortunately, not Mini-USB, but at least all I have to carry is a cable and not a power brick). Highly recommended if you find yourself with a similar need.