The tipping point was when Dubya blew off the UNSC and delivered his 48-hour ultimatum to Saddam. From that point on, our victory and vindication were inevitable.
But as far as actually claiming the prize, there's still Tikrit. And some pesky imported terrorists here and there. And the WMD inspections - the *real* ones.
(Call me arrogant if it makes you all feel better, but at least I don't call myself "God.")