How many nodes in realm?

[Rodrick Brown]

I'm looking to implment Kerberos in our enviornment we have about 250 
servers and are growing at an alarming rate, we plan to double this 
amount in about 2 years or so, I've been looking at documentation which 
talks about breaking servers into different realms, but i've also heard 
about huge kerberos deployments consisting of 5000+ nodes all in one 
realm, should I just design for all my servers to sit in one realm? or 
split it out thanks. We dont really have a need to kerberoize any 
applications we just plan to use it for a centralized authentication 
store and single signon.

-- 
Rodrick R. Brown
UNIX Systems Admin