I was amazed to find out that, although there is no Linux client for 1Password, you can actualy achieve full browser integration in Chrome under Linux! This is all possible using Wine, and worked surprisingly well. Using this, I can fill in passwords in the browser using the 1Password plugin, as well as add new ones.
This worked far better than I had hoped, and there are decent instructions from AgileBits on how to get this set up in the forums