Automate crediting of virtual environments. http://technosophos.com/content/building-custom-drupal-image-vagrant?utm...
http://vagrantup.com/
These custom image can be deployed using chef recipes: http://www.opscode.com/chef/
Here you can try it out for free: http://www.opscode.com/hosted-chef/
It should also be possible to use puppet: http://puppetlabs.com/puppet/puppet-enterprise/
And a video about chef: http://blip.tv/opscode/intro-to-chef-3776519
