[vox-tech] Run Zope as service (non-root)

[tech_dev(Alex Mandel)]

I think I'm missing a concept here.
So if I go and add a line to rc.local(is this the right place?) to start 
up my newly installed zope servers(from source) on boot:
1. How do I make sure they run under the user that installed them (not 
root or sudoer), a general user.
2. How do I make sure they shutdown nice if the computer is shutdown?

Alex
Ubuntu Hoary, Zope 2.7.5, Plone 2.0.5