I was fortunate enough to have Demon's Souls long ago by buying a Canadian copy, as PS3's are region free.
It is however bloody hard and it took me many hours to work out i could shoot the dragon down with arrows, which also took a long time as i'm a melee-centric character with zero points in anything ranged.
I would encourage all EU folk who are hyped about getting the game to reconsider. It does hate you and it will punish you for so much as playing it. I can't even count the amount of times i've been killed at a boss or stupidly hard part of the game and lost thousands of souls as a result. Even worse, i was at a point where i needed stupid amounts of souls to upgrade my character, so i was pretty much in a rut.
It's also very confusing and not very user-friendly until you get used to it.
But if all this doesn't scare you off, by all means dive in. Just don't rage or be surprised if you give up after the first (Phalanx-blob thing) boss.