Mines just a cheap ebay one, im only running one camera and its okay. Based on the connexant chipset, theres shit loads of them on there but for what you want Id aim a bit higher. Mines more of a deterant than anything else. Don't get me wrong, you can see peoples faces good enough to identify but for an extra 20-30 quid I reckon youd see a big difference. That and the card was a bastard to get a driver for that worked, obvioulsy buying from yon pong dong there was f' all support!