I think Dragon Age will be a huge seller and be a great RPG. The NPC characters you meet are SO much like Baldurs Gate 2--the 'realistic' feeling of them being living and breathing people. There's even romance in the game!
The ONLY thing I was disappointed in was that there is no multiplayer. I was hoping to remake my Undermountain Mod with the new amazing toolset that comes with Dragon Age and host a multiplayer server... But I may make a mod for download instead.. we'll see. This toolset looks really fun to use, and much easier than NWN2's I believe.
It's been ages since a good RPG has come around, and I think Dragon Age is worth a purchase! (my Birthday was Oct 21st, and I got $50 gift card to EB, so I'm getting it with that!)
Can't wait. I was at a friends and played Uncharted 2: Among Thieves and WOW, that was actually fun.. A bit scripted, but really a fun adventure/action game.. (A bit too much shooting though) gets tedious.