Looks like they're UK based. I don't know, but apparently tariffs etc are factored into the shipping fees shown on their site.

If you're not sure if you want to go Linux yet, it's probably best to try a live USB stick of a few distros on your existing hardware. Get a feel for what the interface is like, how things work, how it works on your hardware, etc, without actually changing anything. Seems like a better bet to me than buying all-new hardware.