Having devoured all the debate coverage I ran across Cobbler on Freshmeat the morning:
Cobbler is a Linux installation server that allows for rapid setup of network installation environments. With a simple series of commands, network installs can be configured for PXE, reinstallations, media-based net-installs, and virtualized installs (supporting Xen, qemu, KVM, and VMware Server). Cobbler uses a helper program called 'koan' (which interacts with Cobbler) for reinstallation and virtualization support.
And func, almost makes me want to be responsible for a few hundred *NIX boxes, again.