Kyle, that's the the iSight/Mic board, looking at the inside top of the the iMac bezel. The cut cable is most likely the mini USB feed.
Unfortunately, I haven't yet located a good pic showing these wires - as there is shield foil over the connection normally.
I did find the whole part available on eBay here: http://cgi.ebay.co.uk/iMac-G5-17%22-iSight-Board-+-Camera-+-Microphone_W0QQitemZ320460487801QQcmdZViewItemQQimsxq20091210?IMSfp=TL091210198001r33319
Good Luck!