Militarily, Iraq will be a cake walk for the US. Saddam understands this. He's put all his eggs in one basket: the threat to anthrax the civilian population of the US and its allies. Unfortunately, that's a pretty good plan.
I firmly believe he will attempt to orchestrate a confrontation between his troops and US forces, if only to slow us down momentarily and commit our boots, and then gas them all with mustard.
Me, I have no sympathy for anyone in Iraq, and absolutely despise the idea of installing a new regime. Either slaughter everyone and destroy everything, or split the whole thing up into new regions and be done with it.