I'm not sure about Philadelphia (I'm sure there are developers in Pennsylvania), but there are certainly many companies and consultants who would be available elsewhere (myself included).

A system like Concrete5 could be perfect for a school, where it may be beneficial to give different teachers and administrators permission to update their own content. I've found that its very easy for people to learn how to use the system, and "many hands makes the work light," so it can dramatically reduce the effort it takes to get things up and running.

It's a college, but here's an example of Concrete5 in an academic setting:

http://www.portlandbiblecollege.org/...

Here's a more recent site that we've built, on the artistic side of things:

http://www.freestyleclothing.com/...

You might also be able to find other samples in the Showcase to help illustrate that this can be done, and has been done.

I'm in ohio, maybe close enough?