In the recent Linux Journal, there was an article about "Eucalyptus".Â
"EUCALYPTUS - Elastic Utility Computing Architecture for Linking Your Programs To Useful Systems - is an open-source software infrastructure for implementing "cloud computing" on clusters. The current interface to EUCALYPTUS is compatible with Amazon's EC2 interface, but the infrastructure is designed to support multiple client-side interfaces. EUCALYPTUS is implemented using commonly available Linux tools and basic Web-service technologies making it easy to install and maintain."
So if I have some time left... I'm going to take a look at it 
More information can be found on http://eucalyptus.cs.ucsb.edu/
