Best Solution for Multi-Platform Environments

I recently scrounged together equipment for a lab at work. This lab consists of platforms ranging from Windows 2003 Server, AIX, and RedHat. We have multiple versions of our software that run on top of these platforms. Is there a way to create a “platform warehouse”? Something that will allow those servers with PXE capability to pull down the image of the user’s request?

I know Norton Ghost is a possible solution for Windows, but what about Linux distros?