Hi Sylvia,
Although I have no personal experience with shopping carts, Gimpsy has a category that only contains carts for websites that may have what you are looking for. You can find it [url=http://www.gimpsy.com/dir/Build/web_site/tools/shopping_cart]here[/url]
Worth a look anyway and good luck!
raven
here is an excellent cart that is free: http://www.oscommerce.com/
