I currently have component and VGA cables running up through my ceiling to my projector. About 8-10 metres overall. Looking at HDMI for HD (when I upgrade my projector), but not looking forward to the look on my wife's face when I start drilling into the ceiling again. So, is there any way for me to take advantage of the cables already laid, to get HDMI? i.e. chop the ends off and rewire in some way?