We all know VMware ESXi is the leading solution in the market of bare metal hypervisors. So you may be interested in testing its capabilities before deciding to go virtual with your IT infrastructure.
This brief video provided by VMware shows how to install and configure a brand new VMware ESXi 5.1. The same procedure can be used to install the latest ESXi 5.5.
Before watching the video remember that you need certified hardware to use ESXi. You can find a complete list of all the supported devices and systems here.
You can download the latest VMware ESXi ISO from here.