If you will be in Denver on April 5th, come by and see my good friend Nathan Trueblood present on the Digipede Network.  

From John: 

The presentation is part of a Microsoft HPC event in Denver on April 5, 2007, featuring the new Windows Compute Cluster Server 2003 (CCS), the Digipede Network, and other Microsoft HPC partner offerings. 

All details about this free event, as well as the link to register, are here.

Source: Digipede and Microsoft — HPC Presentation