I think Sadam dies on the first night of the war
Something tells me he's not as elusive as Bin Ladin. And Once the bombs start flying, he wont have many places to hide where he can be protected by large concentrations of loyalist troops.
Any such concentrations would giveaway his position.
And on a side note, I wouldn't want to be one of Sadams body doubles: I think they will have a high mortality rate once the bombing starts.
Scott