The BIBLE was written by nomadic tribesmen whose understanding of the universe is surpassed by a 1st grader's knowledge today. The New Testament's earliest description of the events surrounding Jesus were written down at LEAST 30 years after his supposed death and resurrection.
We're talking about the Ancient World here. Lifespans were in the 20s, maybe 30s. So MAYBE, just MAYBE, you've got a survivor that actually saw the events happen. Maybe. You gonna trust his memory after 30 years? More than that, you gonna dismiss that there were dozens of other Christ-like figures around that same time that could do the same magic tricks your guy could?
You know, if you've got the time, just... try this. There's more, but start here: http://bit.ly/cKN6PT