Are you able to install Longhorn/Server 2008 B3 with the hypervisor?  And how would I tell it that's how I want it setup? (Is it just an option in the setup configuration?

I know I need to use the x64 version, and a processor that supports it, which I have.  I haven't tried installing it, as I'm waiting for the Seagate Barracuda ES 500 GB Hard Drive I ordered to come in, which will probally be Monday or Tuesday.