Get the Enhanced Edition, It's an awesome game, 40 hours + with a lots of side quest, and different ways to go through the main story. Awesome game, and awesome story as well if you can get your hand on Andrzrej Sapkowski's books (the author behind the story of the Witcher). You may, like me, resent the combat system, which is a bit hectic at the beginning, but it is in fact fine after a few hours. Somehow, the ocmbat system almost made me miss this great game. I find it far superior to Mass Effect imho.