Motorola H375 Bluetooth Headset

Pros: Cheap, comfortable, conservative style.
Cons: Picks up user less than other sound sources.

I picked this up due to the low price, and since it was (at the time) the same brand as my phone.

It picks up the your voice fairly well, however, it picks up whatever it is pointed at much better, so if you're facing a television, somebody talking, or a radio they come through more clearly than you do.