You may not be as paranoid as I am … but you probably should be.  One thing that bothers me is that on a domain system is that my files are accessible to anyone with admin privileges on the domain.  They can read my emails, my documents, see my pictures, pretty much access anything they want. 

Fortunately for the paranoid there is a solution.  You can encrypt your files.  The easiest way to go about this is to surf on over to truecrypt.org and download their software package.  True Crypt is free of course, all you do is download it and follow their tutorial and you will have yourself an encrypted drive volume in no time flat.  Then anything you stick into that drive is encrypted and only decrypted on the fly when you ask for it.  The best part about True Crypt is that you are the only person who knows the password and it uses such great encryption algorithms that, with a sufficiently long password, it would take years to break.