Not entirely sure this is what you're looking for, but I "use" Mambo Open Source. I put use in quotation marks because I haven't actually set my webpage up yet; Mambo was highly recommended by a family friend of ours. It is a Content Management System (CMS) that allows you to add to and create your pages over the internet so you get immediate results. Frankly, the supreme technicalities of CMS's are over my head, but it seems to be a very good solution to designing a web page.