Brand new Logitech C920s Pro HD Webcam.

Logitech's products have a solid reputation for a reason. The C920s is a great low-end solution for basic streaming and video calling. It may not get you as far as a DSLR setup, but you can't go wrong at this price point for this tier of webcam.

Privacy shutter included.

These retail for $69.99 on Logitech's site, including free shipping.