Right now snag a Plantronics Voyager 520 Blue Tooth Headset from Amazon for only $24.99! (list price of $99.95) This is a great price for one of these; the next best I see is $51.84 at Buy.com. The ratings are really good as well (4 stars). Free shipping with Amazon Prime.
View the deal here: Amazon Plantronics Voyager Bluetooth Headset Deal.
NOTE: The prices on Amazon can vary from one minute to the next. I can make no guarantees that the price will be the same as the one above when you click on the Amazon link. Let me know in the comments section below if the price changes and I will get the post updated as soon as possible.