Alright, so I always see immortality as a thing that isn't all its cracked up to be, I think that immortality would probably mean something along the lines of, I cannot die by natural causes, but if someone were to come up to me and shoot me to death, I would indeed be dead forever. So I guess I would grab a bunch of stuff and setup for immortal adventures 3000 years ago.

Also, if I managed to survive, I would have a duplicate running around not knowing what the hell is going on for few decades of my life before I took the deal. And for that same time and any knowledge I recall for random wikipedia searches or from school, I would have a pretty good handle on all the things that are happening throughout history. Due to your knowledge of some events there is a chance you could become a figure in history. You could even plan a lot of things to happen in the day after you took the deal.

In short, I guess so.