USB Headset (H390)
If use Skype or the a Voice over IP service, a USB headset is perfect for talking to people through your computer. If you have a laptop it will make you completely portable.
This one is especially good if you are in a coffee shop or slightly noisy area. Some people have complained that the top of the strap is not comfortable and the quality is below par. As far as bang for buck, if you care for these they should get the job done.