I just finished the Demo.
My old ass P4 single core 3.2 Ghz HT, 1 GB RAM, GeForce 8800 GT, Win XP just ran the DA2 Demo fine on 1024x768. Looks and runs A LOT better than the original DAO. They optimized this engine, to say the very least. I was not a huge fan of the original game's graphics artistically - though, I did think it got the job done just fine in DAO. I think it's obvious that the graphical artistry and style is MUCH better in DA2 than the original DAO.
I'll get to the gameplay stuff, in my next post...But, there's the teaser....
Let's just say....there's some things I like and some things I do not like...
EDIT:
Dialogue System
The Mass Effect dialogue system here in Dragon Age 2...I don't really know what to make about it. Really, I prefer having the whole dialogue line in front of me of exactly what my character was going to say and just picking that.Though, I really do like that in the middle of the dialogue option wheel, it shows a symbol, giving you the intent and delivery of the intended line - comedy mask face for a joke/funny/comedic line; halo for nice; red fist for forceful or evil; etc etc.
Inventory
Can't really speak on it. The Inventory is locked out of the Demo, for some reason.
Combat and Gameplay
Combat doesn't feel like it's changed much - which is a good thing. You'll feel right at home, if you liked the combat of the original game. Only thing now - it's much faster; and also feels and sounds much more visceral. You tell your character to move-to-attack, the character dashes and rushes right into the fray and gets right to work - no more shuffling around to be seen here. Those days are gone.
You can still do the typical Bioware tactical pause and issue orders while paused. You can still draw a rectangle to highlight some party members w/ the mouse. you can still attack and then let it auto-attack until you give a different order. You can still highlight party members w/ the SHIFT key and mouse; use the F keys to select certain party members; select all party members; and all of the stuff you love from DAO.
The Tactical Camera = GONE
The most head-scratching omission here is namely for PC gamers - and that is going to be not having the overhead tactical camera. I can't tell you how many times I tried to roll the mouse wheel out completely - and it just stopped and it was basically barely over my selected dude's head. Ugh - since there's more unique type-of-skills around here this time and the tactical pause actually stayed - why is the camera gone? Why can't I pull the cam out even a little bit further? Why can't I pull the cam out completely like we could in DAO?