title: PHP - accepting multiple payment gateways
body: <p>I am creating a site where I will be selling a single item and want to be able to accept payment through Paypal, Google Checkout and Amazon but don't want to use some heavy eCommerce software for just a single item. </p>
  
  <p>I'm looking for a good PHP solution that will make it easy to implement all 3, something like Django-Merchant for Django.</p>
  
  <p>Thanks</p>