My experience of garnet wasn't positive - what is the new version like?
@Speednut - yeah, notecase looks like a good general purpose option - it would be nice if it "understood" what a password was in the same way that ewallet does - ie it had a "password" format and a reveal button. But otherwise, it meets the criteria and works better than a pgp text file for sure.
I use kWallet to store ALL my passwords and important numbers. To get kWallet just install KDE and kWallet comes with it. PenquinBait has made KDE installation as painless as possible - if you'd like more information, there is a whole sub-forum dedicated to KDE running on the Nokia ITs.
It will store all my online stuff and opens with a fairly simple master password. Then I've created a 2nd wallet with a more secure password for my credit card and account numbers, etc...