While the rest of the world seems to be using PayPal, we Dutchmen use our own little payment method. It's called iDeal. And yes, it is ideal. I think this Wordpress extension would be even more intersting for Dutch users if it integrated with iDeal.
IDeal is a dutch payment system that is being used on almost every webshop in the Netherlands and Belgium. This payment system takes you to your bank where you can make your purchase directly from your bank account.
Some information about a plugin doing this for WP E-Commerce: