I don't think there will be any civil war in Iraq either now or later on, after elections.
The Shi'ites (65% of total pop) have a recognized leader and everything to gain from a stable situation. They are working WITH the Coalition troops for a democratic transition to take place.
Let alone the Kurdish: they have proved cooperative and wise. They know they only have to gain.
The only problem is the Sunnis: they had to leave power and they see like there's nothing to gain out of elections or a democratic stabilization.
So I think a more likely scenario is guerrilla insurgents fighting on for the next weeks and months, not a real civil war between fractions of the population.
"Freedom is the sure possession of those alone who have the courage to defend it". Pericles.