Updated 05.8.2010:ES
5 good reasons to believe in the Bible:

1.Personal experience: We experience, to get a cleansed conscience, healing, deliverence, provision, guidance etc.

2.The red thread: The Bible is written of more than 40 different authors in different historical periods. By reading it we see that all the book is telling us about the principle of the blood; that to get forgiveness another life has to be given( blood has to be shed). All the books are also showing us the way of salvation. It is like a red thred going throughout all Bible.

3.Fulfillment of prophesies: A lot of prophesies have been fulfilled and are being fullfilled in front of our eyes and will be fullfilled in future.

4.Even Jesus, his desciples and Paul talks about OT as real history, why shouldn't I ?

5.Historical facts: Knowledge about how the Bible came up throughout history, old biblical writings, ancient cultures and biblical archeology can also make us to understand intellectual that Bible is the truth.
a, Background about the bible
b, Archeologi
c, Ancient stories about the past in different cultures.
Teaching from the Bible:
Interesting links:
Creationism
Biblical archeologi
Roman 1.16: For I am not ashamed of the gospel, for it is the power of God for salvation to every one who believes, to the Jew first and also to the Greek.
Secret of God through the ages. Listen here!