Forget Keychain on Mac, 1Password is truly the reference in terms of password management.

This application allows you to store and manage multiple identities and passwords, which you might use in all sorts of programs, websites or browsers. The program works with most of the major browsers, for which it includes an extension to quickly access 1Password while you're surfing the net.

Storing any password or secure note is easy and quick and you'll be able to set up your own security policy, like how many minutes of inactivity until your Mac locks. Keychain users will be familiar with this. You will naturally have to set up a solid master password with which you will have control over your whole collection of passwords.

You can synchronize your 1Password Keychain with your .Mac account, your Palm/Treo and even iPhone to access it from anywhere. It won't work with other phones as yet though.

Additionally, 1Password includes a form filler with which you can set up multiple identities and save data for quick entry. These can be edited any time and associated with specific urls.

The application is regularly updated and the developers are said to be very responsive to issues users may have with 1Password.

1Password is a powerful and effective application to manage all your passwords from one place. Highly recommended to protect your identity on the web.