Buying games from the US PSN Store but living in Europe?

Heya all,

Small question here. I'm from Europe but I have a US PSN account. Now I'd love to buy PAIN from the US Store. However is it even possible to do it? When I want to add funds to my wallet using my credit card all goes fine untill I have to enter the billing address which is automatically set for the US (Country, state and postal code). So is there some trick to add funds to my US account with my credit card?

Not even a trick or work-around? ;_;