We have launched a new website for a customer that incorporates a shopping cart system.
Gracefull Things [1] was developed in Drupal version 5 and utilises the Ubercart shopping cart package for order fulfilment.
If you need a e-commerce solution in a CMS system that allows you to control your own entry and maintenance of products with full back end control, reports, stock management, shipping and taxes handled then contact us [1] with your requirements.