First time posting a deal so these are some of the ones on clearance at officeworks that i think are cheap if you dont have a webcam.
Microsoft Lifecam VX - 700 $8.60 ( out of stock )
Logitech Webcam C200 - $10
Logitech Webcam C120 - $10
Logitech Webcam C300 - $17
instore and online
Microsoft Lifecam VX-700 out of stock.
The other three currently have stock.