PC Magazine's Editor's Choice for a password management site is LastPass1.5. While I admit it makes me a bit nervous to have my passwords saved in one location - one secure location - I am always hearing about different security breaches. My mortgage company was hacked, where I buy my shoes was hacked, even my account with a federally funded agency was hacked - so forgive me if I tend to be a bit hesitant. However, this one is highly rated and I think I might give it a try - passwords are constantly changing and my mind just can't keep up!!
LastPass will also fill out forms for you - sometimes this is helpful - sometimes it is not - your opinion here.
And finally - it is free! You can't beat that!