Based on what I have read from Scripture, all it takes for one to be saved is a personal relationship with Jesus Christ. In order to have that one must believe that Jesus Christ died for their sins; is both fully man and fully God, and He rose on the third day.
Several issues here that I would like you to clarify, if you would be so kind.
First, what do you mean by "saved"? Is this being saved from sin and slavery, a la Baptism, or do you mean eternal heaven?
Second, while I agree that a personal relationship is very important, ney, vital, to entering the Kingdom, you don't describe one in your following sentences. What sort of "personal relationship" does one have with another when they "merely" believe that the other did something for you?
This relationship is akin to me claiming to have a "close personal relationship" with another whom I believe is a policeman who shot someone trying to break into my house. In addition, I believe that this police officer is a white man of 35 years old and married... This sort of relationship with Christ will not enable us to enter the Kingdom. For a quick idea of what a relationship with Jesus consists of, read Matthew 25:31-45...
No, friend, a loving relationship with Jesus Christ requires more than knowing a few tidbits of information ABOUT Him. Knowledge of Christ MUST be experiential - primarily through Liturgical Worship and Prayer.
Regards