I highly recommend this headset I just got. It is a LabTec Axis-502.
Here is a link: http://www.labtec.com/index.cfm?page=gear/details&contentid=5&countryid=1001&languageid=1
Here is a link: http://www.labtec.com/index.cfm?page=gear/details&contentid=5&countryid=1001&languageid=1