Best payment gateways for Wordpress?

[David]

I just recently built my e-commerce website and I am using paypal to accept credit cards. I am looking for a payment gateway for Wordpress (woocommerce). The payment gateway needs to have a plugin for woocommerce and must be available for a business based in the U.S. I would also prefer it to be a direct form (take payments on my website instead of redirecting customers to the gateway website). Anybody know of any good payment gateways that meet the criteria? Please let me know.