The Judgement Seat of Christ

The Father has appointed Christ to be judge of all the world, the living and the dead (2 Timothy 4:1). What does this teach us about the righteousness and justice of God? How should it affect our evangelism? Though the salvation of believers is secure, will they also be judged? Are there levels of reward in heaven and levels of judgment in hell? What impact should this have on our attitude to godly living?