BoldGrid is a drag-and-drop website builder for WordPress, and even have a free version of the plugin to get you started.
From their sponsor page:
By placing WordPress more in line with DIY site builder solutions on the market, our mission is not only to make WordPress more accessible and easy for beginners to utilize, but also automate and streamline typical WordPress tasks to provide a fast, creator-friendly platform that even web professionals will appreciate.
BoldGrid will have a table presence at WordCamp DC and would be glad to answer any questions you have about their offering!