Don't pay for server virtualization - Citrix XenServer is free!
Source: Citrix Systems, Inc.
XenServer is the only free, cloud-proven virtualization platform available, enabling organizations of any size to immediately benefit from server virtualization. XenServer is an open and powerful server virtualization solution that radically reduces datacenter costs by transforming static and complex datacenter environments into more dynamic, easy to manage IT service delivery centers. Critical features such as live migration, centralized multi-server management and shared storage support are included. Download XenServer now; you'll be up and running in less than ten minutes and virtualizing even your most demanding workloads - at no cost!