Weird NFS Security Needs

spankenstein asks: "At work we are trying to switch to using NFS mounted home directories but have run into a problem. All of the technical staff have root access to their machines. It is necesary for this access. However, this leads to extremely easy ways to override NIS and any other "authentication" provided over NFS so almost anyone could mount someone else's ${HOME}. Is there any reasonably secure way of doing this? So far it's looking like Samba is the best answer but that makes no sense in a 90% Linux environment."