Even thinking about how to crack DRM would likely be banned if big media had their way.
I'll point out (for the OP) that if he is given access to the book givers' account (username/password), he could likely use the tools. Or in the case of B&N books, you only really need the credit card on the B&N account at the time of download to remove the DRM (this is why I consider B&N's variant the least offensive of the DRM schemes).
That said, talking about this too much is against forum rules and maybe I've strayed over that limit. If so I'm sorry.