OS X (since Lion) includes a license to run a virtual copy (well, 2 I think). I can't say that I've run the Server app component in a VM but I don't know of any

OS X (since Lion) includes a license to run a virtual copy (well, 2 I think). I can't say that I've run the Server app component in a VM but I don't know of any reason why it wouldn't work, it's essentially just an app that runs under OS X in the first place.