digiSHOP is a ready-to-use out-of-the-box shopping cart solution, with no monthly fees.b It features online credit card processing with authorize.net or verisign. It has an optional "offline mode" feature to take orders and manually process credit cards using an existing credit card terminal. The cart features product options, customer order history, tax and shipping calculations, useful reports, and more. It's easy to match your web site look and feel, using digiSHOP templates. Best of all, it's easy to install.