I used this for learning Hyper V/Vmware etc. It runs 2012 R2 Hyper -V fine and VMWare 6 no problem.
Intel Xeon E5606 2.13GHz
P410 Array controller and x2 250gb drive and x2 1TB drives so you can practice setting up arrays.
iLo2 and an additional 4 port 1GB network card so you can practice V Switching etc.
It's a heavy lump so collection please