I never have had access to an OS copy to work with, however, with the advent of the VT-technologies things have gotten a lot better for VM's in general. I have heard of many useable implimentations of OSX on VMware ESXi, and Citrix has even claimed to have a valid working copy running on their XenDesktop desktop hypervisor which runs on XenServer. I have not heard of any good useable copies running on a type 2 hypervisor, however (or type 1, whichever it is that runs on the OS instead of AS the OS). I would think your best bet if you have a copy of OSX to install would be to download a test copy of VMware Workstation and load it on there. Because of their broader corporate support over VirtualBox, you are likely going to have better chances of it working well in VMware. Another piece to consider is Parallels Virtuosso. Parallels came to Windows from the Mac world, so they may be better poised to help with getting it properly installed and running in a virtual machine. Please note, however, since licensing issues exist that are suspect, they may not be WILLING to help you get it running.