Looking for a lab server that runs < Esxi 5.5 and Xenserver without any problems. I don't want to build it myself, thats for kids :smileyalert:. 
Planing to use about 8-10 vm at the time. Server 2012r2, Linux, Sccm, Exchange, Lync and some clients.
I want a prebuild server, a tower, and it should be quiet. 
Price range 10 000 US Dollar.