I am planning on running a hyper v windows 2012 testing domain and was thinking to either install 2012 datacenter as a Hyper V host on a new hdd with lots of other 2012 VMs for my test enterprise domain structure or to run the initial Hyper V host in a parallels VM so that I can use my mc for other tasks at the se time as I am working on my environment. Does anyone have any experience with this? I have a hack pro, core i7 x980 with 18GB of RAM. As there will only be 1 or 2 test client machines on the domain, I doubt it will be too demanding for it, but I anticipate running about 12 2012 VMs for my test environment. I think I am probably better off running the Hyper V host natively and then I will have direct access to the network ports, but the idea of running the Host in a VM is quite appealing.