Script to Create AD Security Groups based on OU Membership

Hey Guys -

Quick question - we have a domain with numerous OUs nested within each other.  Most are in the format below:

- AD Root
   - Site
      - Location
         - Workstations
         - Users
         - Groups

The "Location" parent is the name of physical location and we have many across the country.  What I am trying to do is create / locate a script or tool which will do the following:
- Obtain a list of members (device) in a specific "Location" OU (including children)
- Create an AD security group named after the "Location" which contains the same members

I can see where this may be doable fairly easily if I wanted to make a group named after an OU which the devices were immediately in, but am actually needing it to be the name of the OU one level up.  I've got about 200 - 300 of these I want to create.

Any suggestions?  Thanks!