in reply to Name Space
jackdied is a mnemonic for finding my name in a directory. 'died' is the first four letters of my last name. When sysadmins balk I use 'jackd' on unix systems. If it is killing you trying to figure out the whole last name, try whois
John Smallberries is one I used from time to time, until I found out there was another guy using it as well. It is from the "Buckaroo Banzai" movie.
Then there are a bunch of others only used for particular projects (Nezarb, KRad (no kidding))and a flurry for muds and bbs (redman, brazen, stilgar, etc).