You would have to use Dreamweaver to install PowerCMS initially, but after installation it would work stand alone with something like PineGrow. It does create an admin area where someone can edit specified areas on a PHP page.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.