Creating a website for selling virtual products at minimal cost

I need help creating a website for selling virtual products at a low cost. The website must be an e-commerce site and I am open to either Magento, or WordPress as the platform. I have a specific design and layout in mind for the site, which I can provide further details on. I am looking for assistance from an experienced web developer who is knowledgeable with creating e-commerce websites, has experience working with either Magento or WordPress, and who can turn my vision into a successful, user friendly site.