From the pages I would be interested in the PR is 4. What would be the difference between getting a standard PR4 link for $5 permanent?
If someone gave me the choice between listing my site in Yahoo, and all the directories listed in the top directories sites popping up everyday (including aviva, alive, ...) I would choose yahoo. I am listed in yahoo, get few visitors a month, the listing helped me a lot in google but not at all in yahoo. For phpld/esyndicat directories, the only one I recommand is 2yi.net