There are two aspects to consider when handling a merchant account. The first is how you get paid. In this area, we have experience with PayFlowPro from Verisign, Authorize.net, Paypal and Google Checkout. The second is how to report and account for the transactions especially if you are using swipe terminals in some locations and are using a website provided by the merchant for settlement, chargebacks and fees. We have worked with Vital and their econnections product to automate those processes.