Indeed, VMWare Server is one of the easyist, most widely used apps out there for virtualization. Free for personal usage.

https://www.vmware.com/products/server/

On another note, having worked with VMWare for quite a while now, last night I finally installed HyperV to see what it was like. Amazingly, it is incredibly easy to use. I like it so far. I'm working on building out a full domain, multiserver SharePoint farm with ISA server, a DMZ, etc etc.. trying to mimic at home what I encounter in the corporate world.