I have found the Etymotics Ety-Com headset to work very well. I don't like some of the latest Jabras due to the wrap around the ear feature, and find the Ety-Com to be very comfortable. I have also found that the sound quality is much better--both for the me and the person I am talking to.
www.etymotics.com
Also just came across this in a review on WSJ--www.jawbone.com
Jeff