Bundlebox is a service that provides people outside the US with a US mailing address so products only available in the US can be purchased. They give you a personal US address which the package is delivered to, then they forward the package on for you and arrange for import taxes to be paid.
I ordered from the US MS store first thing on Sat Morning, the Surface Pro reached the Bundlebox address on Tuesday. They emailed me within an hour of receipt so I could confirm the contents and pay for the forwarding delivery and import duties. They then sent the package that same day and I received it on Thursday morning at my home in the UK (and you can track the progress of the package throughout the journey).
It's a really excellent service.