Vestax PBS-4 This little box will handle video inputs from HDMI (x1) composite (x4) and a VGA input, you can switch between input sources (up to four at a time) and mix audio out to the USB connection. This shows up as a USB camera device for streaming out to services like LiveStream, Ustream etc.
Priced at around €469
Prototype shows plenty of display area and meter bridge
Updates on the Komplex Sequencer and nice little explanation