At the heart of most professional web design budgets is an Internet Marketing campaign and CMS or Content Management System. Without these basic elements succes will be elusive. And so to determine the cost of a good CMS based web design you should consider such things as special features you need, SEO requirements and how you want to market the site before you commit to any purchase. It is also very important to have a clear vision for your website, such a the number of pages, photos and videos as well as who your audience is and your key messages. All this information is critical to the job of determining the cost of your web design.