I'm going to buy both... but I think that the DA plot will be slightly different:
you know nothing of your past... a cleric stepfather raised you as if you were his real son, but in the very beginning of the game he dies... so you decide to go outside your village with a caravan, but an avalanche get you caught in the middle of nowhere, and all of your caravan companion die... suddenly a man dressed in blue give you a quest: the people who live in his cave are short on water, so you have to fetch a water ch - ahem, a big amount of water... you find on your road an attractive young and talented woman who joins you in your quest... you get caught by an elven mage who has seen your incredible potential... you escape and return to the cave, but nobody is here anymore, everybody got killed or kidnapped by a military organization... rumors are that they are descendant of an ancient lizard race... you discover you are a former bad guy, but now you have the chance to redeem yourself... your female companion betrays you --- and there's a massive final showdown where you have to fight a bald guy with a lightsaber, two halfdemon twins, a medusa sorceress, a big woman with a trident who claims to be the former lover of a dead god, a devil who escaped from the frozen lands where he has been bound and a trascendent one. That's cool, isn't it?