so where u guys gonna pre-purchase this game? amazon?

How does physical Pre-Purchase work?
Physical Pre-Purchase for Guild Wars 2 is only available at select retailers. The details of how this will work will differ slightly depending on which edition customers purchase and where they purchase it.

Standard Edition (North America)—Customers will buy the Standard Edition Pre-Purchase box and receive a Pre-Purchase serial code. They will then go to https://register.guildwars2.com and follow the on-screen instructions to create a Guild Wars 2 account and apply the serial code, which will give them access to Beta Weekend Events, the Hero's Band digital item, and three-day Headstart Access to the final game. When Guild Wars 2 launches, customers will need to return to the retailer with proof of purchase to receive the full Standard Edition box and retail serial code. They will need to apply this retail serial code to their Guild Wars 2 account within five days to continue playing without interruption.

Standard Edition (Europe)—Customers will buy the Standard Edition Pre-Purchase box and receive their serial code. This is the only serial code customers will receive and will grant access to the Beta Weekend Events, three-day Headstart Access, the Hero's Band digital item, and full access to the final live game. Customers will not need to return to retail to receive another serial code.

Collector's Edition (North America and Europe)—Customers will buy the Collector's Edition Pre-Purchase box and receive a Pre-Purchase serial code. They will then go to https://register.guildwars2.com and follow the on-screen instructions to create a Guild Wars 2 account and apply the serial code, which will give them access to Beta Weekend Events and three-day Headstart Access to the final game. When Guild Wars 2 launches, customers will need to return to their retailer with proof of purchase to receive the full Collector's Edition box with physical items and retail serial code. They will need to apply this retail serial code to their Guild Wars 2 account within five days to continue playing without interruption.

The one from the GW2 website is for the digital edition, I believe.

And it is way simpler, all you need to have is a 25GB space (according to the website) and an Internet connection to download that 25GB =P.

6 more days..................

it's called regional pricing, GST and shipping costs. Oh, and "get yours shipped from US if you want it cheaper" pricing. Yes, it sucks, but Aussie retailers have a habit of overcosting everything.

Afraid not :\

Don't pick up the EU version either as there's a region lock for logging on. Best stick to the NA version.

Oh, well...
Debit card should work for the pre-purchase, just make sure you have enough moolah when the transaction goes.