If you consider moving to cs-cart you may consider cart2cart online service. It automates data transfer, offers assisted migration, etc http://www.shopping-cart-migration.com
CS-Cart - first impression
After working with CS-Cart some weeks - it is a great cart. I have tried out many different shopping carts but CS-Cart has all the good features I want in a shopping cart. It’s easy to use and have many very good features. All features are well think true. Looks to me like a coming popular shopping cart for the future. All good things must start somewhere. If you need to translate the cart to another language – this is the one you need. Looking forward to further progress and updates with this cart. The support has also been great. I can only recommend others to take time and try it out – it’s worth it.
An open, cross-platform journaling program.
A scientific plotting package.