Make bootable vmdk from Mac OS X disk?

Hello,

    I have a hard drive from an old laptop with Snow Leopard installed on it. I'm trying to make a VM out of this drive. Since Workstation 9 does not natively support OS X, I've used the workaround with Darwin ISO and OS X Server to create a VM with OS X on it. Is there a way to restore the image of my USB drive to the vmdk I'm using for the VM? I tried using that drive for the VM using the "physical disk" option, but it won't boot over USB. Ideally, I'd like to transfer the data from that drive to my host machine, running Windows 8, and virtualize the machine I had previously on my old Mac. There is the option to create a VM from a physical drive, but I don't think this will work with OS X because I have to use the Snowy VM to boot, right? Any suggestions?