Originally Posted by fadedc 
Wrong. DA:O has a book you can buy which will respec you.
Originally Posted by fadedc 
Your right that it's part of the DLC, though the DLC was in the game from day 1.
No.
Thereīs no respec in Dragon Age: Origins at all, DLCs or not.
The book is an Awakening expansion feature and can only be used there.
Besides, the "respec" in Diablo 3 is not really a respec feature, itīs more akin to changing equipment.