I wanted to configure sshd so that I could login without a password. I found a brief article at thinkholelabs (cache). While it has some other problems, the tutorial for authorized keys worked well.
After making this all work, I disallowed password logins using:
The next thing is to enable some type of port knocking process.
Found this site (cache), and this DenyHosts script (cache) seems promising, but no time now.