I'll look at LastPass as I've grown unhappy with Roboform which I have been using.

However, what I'm looking for is a replacement for the form filler in the Google Toolbar (which will no longer be updated for Firefox.) It's a general-purpose filler--you give it a set of generic fields and it tries to fill them in anywhere it thinks they make sense. It's not perfect but I would say it saves typing such information at least 80% of the time and only rarely screws up. (Mostly in doing things like sticking my e-mail into alternate e-mail fields and the like.)