Gamershell has two of the three demo movies from
The Witcher's E3 booth this year. So far they have the
story trailer and the
combat trailer up and if I recall correctly there is a third one on the magic system in the game but they don't seem to have posted this one yet.
The Witcher was certainly one of the better titles I saw at E3 this year but it seems to have slipped below the radar.