And also, I think you are right about faith. In the end it does come down to that.
However, it should not be the 'blind faith' that so many people think that Christians have. To be sure, there are many Christians whose faith could probably accurately be described as 'blind faith', but if Christianity cannot stand up to tough questioning then it should not be followed.
Even if there is not 'proof' of the truth of Christianity, there are, at the very least, compelling arguments as to its validity.
Also, you want multiple texts? Perhaps it would be helpful to remember that the Bible is not one text. It is a collection of several different accounts. We have four separate eyewitness accounts of the life of Christ. "But," you say, "they were all disciples!" Well, what accounts are you looking for? Do you expect people who weren't followers of Christ to write down accounts of his life?
However, we do have a couple references to Christ that come from outside the disciples. Josephus is an important reference and there is also a Roman author but his name is escaping me at the moment. I'd have to go look it up.
-J