Using Design Extender and Power CMS, SEO is already available. You can create content areas for meta-keywords, meta-title and mete-description and add those content areas to you pages in the associated tags.
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.