I've got a few things to say on this... first of all, look at it like this. A christian dies, if he was right then he goes to heaven and gets eternal joy, if he was wrong, well then it's just neutral. An atheist dies, if he was right it's just neutral, if he was wrong, he suffers eternally in hell. Which does it make more sense to be?
And also this: i was talking to a friend at a christian youth club about people who live in middle-of-nowhere countries that havn't heard of God or christianity. He told me about some missionaries that went to one of these countries, and when they got there they found that these people had already discovered God on their own, and that they'd even worked out that his son's name was Jesus, and these were people who'd never had contact with the outside world before. Kinda makes you think doesn't it?
Oh and i think i'll add this as well, to all you people who don't believe in God, do you believe that there could be life elsewhere in the universe? You've never seen them, nor seen any proof of them, yet you still believe it's possible, but when it comes to God and there's more than enough proof, you still deny it... why? Why can't it be possible?