Techs & Trends

I just got my Treo 650 and anxious about getting a blue tooth headset. Any suggestions on whats out there and what to stay away from? Does anyone have any recommendations on which one to by and what to look for in a head set and most important, is it worth the money and do they work? I haven't been able to find any web sites that give reviews or recommendations so any help you all can give would be great.