You can now sign up for a merchant account to use the First Data payment gateway.
The First Data gateway supports various payment approaches:
Hosted Payment Pages redirect the customer to another (customizable) site to collect card payments.
Payeezy JS Checkout allows you to collect card data ON your site, but the actual processing of the card data happens in real-time externally, and the card data never touches your store's database or software. This is a PCI Compliant solution which is very user-friendly.