What I want to know is how far does the decision really affect the game? I get that the ghouls take over and you feel bad, but does it really affect the character seriously? I really can't wait for the game where there's a moral choice in the middle that affects everything, as in the gameplay and storyline. I really want something where I'll be haunted by my decision for the next few hours of playtime.

*MASS EFFECT SPOILER*
Closest thing I can think of to that is Wrex's potential death in Mass Effect. The first time I did the part, what's her name killed him, and I knew I had to go back and redo the level. Meanwhile my friend, who apparently had something against awesome dinosaur bounty hunters, killed him and that was it. Watching my friend prepare for the last level, it was weird to see the black space.