[CentOS] unattended install via nfs

Hello,
    Does anyone have a guide for setting up an nfs server for unattended 
deployment of centos5? Basically what i want to do is boot a system from CD 
media, pass a boot parameter nfs, and ks= options then walk away, the box 
goes out to the nfs server, finds the kickstart file, reads, and does it. 
I've got several machines and i'd rather not do manual installs.
Thanks.
Dave.