Bump and I'll also trade for a Windows 8 Enterprise key (unused) or a Windows Server 2012 standard key (also unused). These keys are remaining from my job in IT.
Through my work, I have a Windows 7 Ultimate key. It is unused, but, it is a 'package-less' digital copy, so I can't post a picture. I would trade for a steam key to black ops 2. PM if interested.