For the Linux distro I chose Ubuntu 10.4 (32-bit). This is just the one I know the best.
One of the first things I like to do is set up a personal user account so that I don't use the root. This is so less-than-intuitive I have to look it up every time.
Here are my notes so that I don't forget.
# As root, run the useradd command:
sudo useradd -d /home/testuser -m -s /bin/bash testuser
# Reset their password:
sudo passwd testuser
# Then add them to the sudoers file:
# Create a user alias for the company accounts:
User_Alias CHAIONE = user1, user2
# Then add this line lower down:
# For future users, just add them to the CHAIONE alias