Hi. Fellow Norwegian here :-) You just need to buy the Euro ISO layout, or the Swedish/Finish layout boards that Keyboardco.com is offering and change the keycaps to some special orders.
I have converted, and now run ALL my boards in US ANSI layout due to the fact that you can't get any decent boards in Norwegian - even my laptop keyboard, so as not to get confused.
But if you're going to invest in ONE keybord, you should seriously consider the Realforce 87USB as well. A tad more expensive, but oooohh, so nice.