Computer desktop and notebook owners now have an extra option for adding a second external monitor to their machines, or connecting their computers to their HDTVs will full 1080p vision and sound -- or adding Bluetooth audio to non-BT receivers, courtesy two new devices from AV peripheral maker Kanex. The Kanex mLinq is a $99 USB to HDMI adapter, while the AirBlue lets users stream music from their portable bluetooth devices to car radios, receivers or anything with an audio input port.