Avactis Shopping Cart is an easy to use ecommerce software that allows you to open an online store on the Internet. Compared to other similar software, Avactis offers a unique advantage of very simple integration of the online store into your existing site.
Avactis has just released Avactis 2, with a brand new Visual CSS editor and Visual layout editor. Using the visual CSS editor you will be able to easily and quickly change the store design. You can check out this video tutorial which shows how easy to modify the theme using CSS editor. Visual layout editor allows you to move page elements in drag-n-drop mode.
Avactis 2 also supports Price-based discounting, Affiliate tracking of orders, Advanced newsletter management, Quick checkout, Wish List and Gift Certificates. Avactis 2 is not free, but you can try out their free shopping cart with limited features.