on the open source side Magento is getting lots of traction Another option is Interspire Shopping Cart (http://bit.ly/9z96cl http://bit.ly/9z96cl) - which is n

on the open source side Magento is getting lots of traction Another option is Interspire Shopping Cart (http://bit.ly/9z96cl http://bit.ly/9z96cl) - which is not open source but give you full access to php code base, design flexibility, a steady stream of updates, support, and new features. Interspire also makes BigCommerce (http://bit.ly/bxyds4 http://bit.ly/bxyds4) which is a hosted shopping cart with solid front end flexibility.