A useful looking appliance: Ultimate Deployment Appliance
The Ultimate Deployment Appliance will help you deploy your servers or workstations. The goal of the project is to be able to fully deploy a computer by booting to PXE and choosing the prepared operating system template. Of course this is already possible, but as I discovered, it takes a lot of time to setup a service like this. This appliance will do it for you. Windows, Linux (Fedora, Ubuntu, Suse) and Solaris X86 are supported.