In order to "do business" on the Internet (or from a store front) a Retailer needs three things:

1)Shopping cart software that identifies the item(s) and presents the shopper with a total (including tax and shipping) to be paid.

2) A Payment Gateway (A credit card processing company)

3) A Merchant Account (An actual bank account which receives funds and distributes them)

This company provides "all of the above" with the best over all set of features that we have found.