I want to make extension that make possible to personalize a product in magento web store. Visitor can create a business card or another item via using real-time editing software with Adobe Flash or ajax. After than he can add to a cart. All the processes are similar with VistaPrint and zazzle. I want a simple solution, with fixed fields, so the visitor doesn't get confused with lots of designing tools. Most like vistaprint, text fields and add image like logos etc,.. At the backend a possibilty of insert new designs and assign the fields and templates.