If you need to process online payments through your website there are a number of options. Simple options are available such as PayPal and PayMate where the customer would finish the checkout process by being transferred to the third party website to make the payment. For a more professional site, you could use a service such as eWay combined with a secure SSL connection which would allow the customer to make the payment directly from your site and without having to create a new account on a third party website. Preferably, you would offer a combination of these services for greater customer confidence.