Welcome back Lamar,
It's great that you brought up the RPMs issue. I'm working on packaging OpenACS 4 for Debian and have been thinking about these very issues. We could try to work together on getting installation scripts and such for the packages.
Another question I have is whether we should package the different OpenACS packages or just the core and let the user pick whatever other packages he/she wants through the APM. Don seems to have implied that we should let the APM do it.