heh, i'd think you'd go with nfs because it's drop dead simple to setup. seriously, google something like 'linux exports example' and just look at it. you should have it setup in no more than 10 minutes. now, if you have 100 servers hitting it and you start noticing interesting issues with file locking, dates, and the likes, you might have to read up. but, seriously, there's not much that is as simple to setup on unix as straight nfs.
--
Did you know...
If you play a Windows 2000 CD backwards, you hear satanic messages,
but what's worse is when you play it forward....
...it installs Windows 2000
-- Alfred Perlstein on chat at freebsd.org