In Part 2 of the Skyrim Demo (Im watching on my X360 btw) if you look in the bottom left of the screen at 3:36, then I think that looks like (fairly sure that it isnt it, but it looks fairly like it in shape) the helm of Oreyn Bearclaw (from the 2 previous TES titles). I am aware it likely isnt it, but I just think t looks an awful lot like it.
I would link you to the video for convenience, but whenever I try to load a Youtube Video, my browser freezes as one of my plug-ins is buggered.
Also, feel free to discuss opinions on the dungeon, combat, lighting etc that is available, at least in this part of the demo.