Higher res version of the video in the OP:
http://www.gamekyo.com/videoen13346_demon-s-souls-new-gameplay-footage.html
I'm really liking the atmosphere. The castle reminds me of the castle from Return to Castle Wolfenstien, but in a fantasy setting.
I REALLY hope this game isn't ruined by stupid technical issues. :(
But this is From Software... *sigh*