Jonas writes in and shares a link to a discounted 5D Mark III through an organized Group Buy via eBay. To be honest, I wasn't aware that these Group Buy Deals even existed, mainly because it's only available in AU.
This is not available for USA residents (and other countries), but it's worth taking a look if you qualify as there seems to be a number of these types of deals listed. Check out a Canon 5D Mark III posted up recently as part of the GroupBuy deal via ebay.com.au (Click Here).
Canon 5D Mark III Group Buy Deal