[Zope] The Zope Portal Toolkit

Hello guys. I'm using Zope to build a complex "community information system", where each user won't really need a "management" screen but will require their own customized "webspace portal" that displays personalized data. I know the ZClasses and ZCatalogue will be handy for implementing this, but is there an actual "toolkit" for this? I'd be very interested in this if it existed. Thanks, Eron