[Zope] Batch Import?

Hi all, What do you use to import a batch of files into Zope? Preferably fully automatic and scriptable, being able to import a mixed set of files and images and create objects for them, set properties? Batch import of images is what I need the most, preferably creating ExtImage objects. Anybody already built something like that? Found load_site and fsimport so far, am I overlooking something? Thnx! Jonathan