(commercial) 1Passwd is a password manager and form filler which is integrated directly into your web browser. For maximum security, all of your information is kept in the OS X Keychain.
Black Light Screen Saver
Black Light Screen Saver allows you to invert the colors on your screen.
KeePassX is a cross platform port of the windows application "Keepass Password Safe". It is an OpenSource password safe which helps you to manage your passwords in an easy and secure way. It uses a highly encrypted database locked with one master key. Read more
KeyMaster is a password storing application. It provides an easy and single place to store all of your passwords for websites, programs, or any other use requiring a password. KeyMaster also allows you to lock the application so that if you step away for a moment, no one can view your passwords.
sharedSecrets manages all your passwords, PIN and other secrets. It is easy to use and you have to memorize just a single master password.
Ski OTP Calculator
Ski is an S/Key (One-Time Pad or Password) calculator for MacOS X, with handy features such as storing your passphrases in the system keychain, and automatic calculation against challenges on the pasteboard.
(commercial) Wallet uses Blowfish encryption to protect your data, and sports many other security features to keep it safe.
webPM is a web password manager which has the ability to sort or manually reorder the list, and it also accepts carriage returns into the note field.