Gothic III is easily the number one game on my most wanted games list. Has been for quite a while. Even Half-Life 2 was on the second spot.
I first got to know Gothic by playing the english demo in 2001. I was simply blow away by it. Then I bought the english version of Gothic as soon as it was released and found out that it was the best 3rd person action/adventure/RPG game that I had ever played. Then in 2003 the english version of Gothic II was released and it was as good as the original, if not better (can't really say because I love both games so much).
The Gothic games are awesome singleplayer experiences with a good continuing story. Only Outcast can somewhat compete with the Gothic series.