Many ProductCart users ask us to recommend a payment gateway. We don't have direct "customer experience" with many of the payment systems integrated into ProductCart. We can only speak of what we personally know. One payment gateway that we know quite well is Authorize.Net. Learn more and sign up.
At Early Impact we use Authorize.Net as well as PayPal and Google Checkout on our ProductCart-powered ecommerce store. We have been using Authorize.Net for several years now, and are quite satisfied with it.
Authorize.Net is tightly integrated with our ProductCart shopping carts. Here are some of the things you can do:
Busy ProductCart-powered stores are heavy users of features such as order editing and batch processing. These features allow you to streamline and improve your order processing tasks, and save a substantial amount of time.
Learn more and sign up with Authorize.Net | Other payment gateways