Windows Server Virtualization Calculators

For those of you considering Virtualization in your solutions, Windows Server Virtualization Calculators, are available to estimate the licensing costs for Windows Server editions. Haven't tried these yet, but given that figuring out licensing costs for MS products is something I've been successful in avoiding to date...I might not have as many excuses in the future. Hopefully, this will be a precursor of more of these types of tools.