I read a very interesting article about FAI in the german computer magazine iX. This software allows you to plan and manage installations for large clusters just the way I always wanted to do it. It is primary written (but not limited) for Debain Linux systems.
Until now I've written something by myself, but I think I'll blast it for FAI!
Here are all interesting links mentioned in the article:
* Cross Install HOWTO for Debian
* FAI BootCD for Debian GNU/Linux
* Compiling kernels The Debian Way