All the new projects I am working on are related to Cisco ISE (Identity Service Engine). To understand this Cisco product better, apart from reading all the documents from cisco.com, I have also purchased the NFR kit from Cisco.
You can purchase a 8GB USB stick from Cisco that contain the ISE 1.0MR Vmware from Cisco Marketplace. The ISE 1.0 NFR kit is free, but the 8GB USB will cost you USD$24.99 + Shipping.
It comes with 20 permanent advanced licenses and you can upgrade this NFR ISE from 1.0 to 1.1.1.
Update: you can upgrade the NFR kit from 1.0 to 1.1.2