Anyone know how I can buy US PSN cards?

Hi guys, With the upcoming fall sale on PSN http://blog.us.playstation.com/2011/11/21/stock-up-for-winter-with-psns-fall-sale-get-30-to-50-off/ I was wondering if there is an online store where I can buy PSN vouchers.  
 
I'm in Australia btw and unfortunately I don't think the sale is happening on the Australian PSN store. I was really hoping to pick up Limbo and Outland on the cheap.  
 
A store that emails the codes would be preferable.

There are several sites that sell game time codes and PSN cards and the like online, they usually take a picture of scan in the code on the back of the card and send it to you. A search should bring one up pretty easily.

I think most of them require a phone call to verify your identity as well, not sure. I haven't used them myself, but I know friends that have.

PC Game Supply

Cards Codes

For US cards I usually get it through Amazon.com. They're quick about it and I mean it's Amazon, so you don't really have to worry about it being shady. Just be sure to get it through Amazon proper and not a reseller.

Any other country codes, like Canada, I use Play-Asia. They offer digital codes as well and they have a slight mark-up, but usually of only like 3-4 USD. I've used them to buy codes like 4 or 5 times now and it's never been a problem.

I use Play-Asia as well for this.

@masha2932: you can try American Amazon it works for me fine and I live in Europe.

This is a weird bump.