Hi, We are a custom designed merchandise company where we sell tshirts, mugs etc with the users' pictures on the products. We have designed a site for the web presence of our company. But the current site is static. We need a shopping cart system developed for our site with the current theme we have. You can use oscommerce or virtuemart or ubercart or any open source CMS or make your own but have to port our current theme to that. Requirements of the backend -- A shopping cart with easy integration of payment gateways -- Porting of our theme -- An intermediate step(optional) to enable users to upload their picture -- Easy adding and removing of products An example of site like ours is zazzle.com (ofcourse our template would be different)