Seriously though, do Barnes and Noble actually sell the Nook to international customers? They certainly don't market it over here, while Amazon have run quite a lot of TV and print ads. Buy the look of it I'd have to buy the device and books in US dollars instead of my local currency. These things don't give me the feeling that B&N are serious about sales outside the US, while Amazon definitely are.
What's this Nook thing you're talking about?
I can't imagine living my life without it. Seriously.
States do have a right to tax their individual citizens who purchase online. Unfortunately, most citizens do not comply with these state taxes (called "use taxes" because they aren't on a sale, the sale occurs out-of-state).