I need a wireless webcam compatible with Windows. The current webcam I have is cheap and not wireless and when I use it with a USB cable extension. Am I right in saying USB won't work well with a really long cable, this is 5 metres away from the computer? Can you give me a recommendation of webcams (good, better, best options) that work with a 5 metre USB cable or wireless models that work over bluetooth or wifi. The last complication is this computer is a Mac running Parallels virtualisation software, so I'm a bit worried about using a Bluetooth webcam in case it won't work. It should though. Any ideas welcome?