OUADSPath2Clip.ps1 is the PowerShell version of OUADSPath2Clip.vbs. What I found difficult about this script was coming up with a fast way to navigate a large Active Directory structure. The AD navigation bit uses Output-GridView for selecting a domain. This requires RSAT (see previous post for more). It is a clumsier interface than treeview, but it is much less complicated, and works quickly across domains in the forest. After writing the navigation bit, I add the export of data to the clipboard. Note that Output-GridView requires PowerShell 3 or later.
UPDATE: For a version of this script which does not rely on Out-Gridview, check out the latest version.