Hopefully you aren't taking a nap on Network Access Protection (NAP).  If so, it's time to wake up and add some rigor to the connections on your network.  The NAP team has posted some updates to their step-by-step guides.  Here are the direct download links:

Step-by-Step Guide: Demonstrate DHCP NAP Enforcement in a Test Lab

Step-by-Step Guide: Demonstrate IPsec NAP Enforcement in a Test Lab

Step-by-Step Guide: Demonstrate 802.1X NAP Enforcement in a Test Lab

Step-by-Step Guide: Demonstrate VPN NAP Enforcement in a Test Lab

If someone manages to setup the 802.1x environment totally virtualized, let me know.  I don't care if it uses a competitive product.  Thanks.