It was at Barrett Jackson this year
http://www.barrett-jackson.com/carlist/cardetails.asp?In_AuctionID=221&In_LotNumber=1262
But it only hit $500,000 and was rumored to have been bought back by the seller. So he probably lost about $80,000 on the deal.
And the same seller has a 427 iron block COPO Camaro (Not as valuable as the aluminum block)
http://cgi.ebay.com/ebaymotors/Chevrolet-Camaro-1969-Chevrolet-COPO-Camaro-427-Restored-Famous_W0QQitemZ160085394551QQihZ006QQcategoryZ6161QQssPageNameZWDVWQQrdZ1QQcmdZViewItem