I was once a "reborn" christian who even went to bible school to become a professional evangelist. Luckilly they didn't think I was qualified and made me leave. After that experience I began to reconsider my faith and began browsing atheist sites on the www.
I now consider myself to be an agnostic. There are certain points that keep me from denouncing the existence of god:
- Why is it that anything exists at all?
- Why do we experience consciousness?
- Why does the worlds trend towards a one world government fit with the bibles account of the end times?
- Why does "life go on" despite all the efforts to the contrary?
Those points can be easilly explained without god. Their combined effect, however, is enough for me to leave the question open.