Grab the Xbox LIVE Vision camera for only $27.99 (lists for $39.99) over at Buy.com using the $10 off $30 Google Checkout option.
Steps for this deal:
1. Click this link: Xbox 360 Live Vision Camera Webcam 
and add it to your cart (make sure you are not logged into your Buy.com account).
2. Click 'proceed to check out', and select the 'Google Checkout' option
Hurry and use the $10 off $30 Google Checkout offer on any other in stock items (Go to Buy.com 
and search for games/etc...)!!!]
You can also create additional individual (separate) orders that can take advantage of the $10 off $30 coupon (for additional games / accessories / etc...).
[Thanks Knotty]