@Nugget: I have never considered suicide as a real option, and honestly don't think I ever will. Now, don't take that to mean I am a very happy person. I have suffered and am not a particularly happy person. I have walked some pretty dark roads through my mind. I have considered suicide in a sort of academic way in some places, going so far to map out what I would do, but knowing that I just never would. That just isn't what I would do.
My greatest fear, more than death, is being paralyzed in an endless state of boredom. That seems like hell. But I still think I would rather know the time and method of my death if it was an action.
The thing behind this question is the idea that your death is already preset and is inevitable. The only difference your answer makes is whether or not you know before hand. What would be terrifying is if the answer to this question was that it would be by suicide several months from now. Because I would know that it is not preventable and would have to know that something would happen to break me completely in the next few months. Ahhhh...terrifying. But from my knowledge of myself I would wager that that is not what I would be told.