There would then ensue charges against him in international courts for mass murder and he would become a war criminal (and why that has not been done by now is beyond me). Either way he goes the best he can hope for is a delay. Not to mention he has likely helped osama and crew - and Bush already promised to hunt those folks down. Giving up WMD may delay his demise, but it will not stop it. As far as going to war is concerned it would, most likely, avert war for now.
The war to come is to head off his use and making of WMD AND to stop further use of his kingdom for terrorist attacks against the US and others. He makes many in the ME nervous and those in high levels of power there would like to see him gone - though they have trouble saying it publically as they have to keep the fundies happy.
He is a war criminal, a terrorist, an evil dictator. Hopefully that will all get focus and not just the WMD. Airplanes killed 3000 people, terrorists like him don't need WMD, they just need power, money, and idiots to follow (much like the leftists who are easily swayed into terrorism - at least according to a military report put out during the Clinton Administration).
I think this line is key. See post #35. Realistically, given that the intent of Saddam is to delay till hell freezes over; realistically how long would you think the delay could be?