Toad, if the scenario you describe occurs then I think it would be great. Hat's off to Bush, the master poker player. We can even start concentrating on the war against terrorism once again. However, it's hard to have confidence in any official motivation though beyond the fact that we want a regime change favorable to the West.
Hussein has literally been called a "Hitler," it's been pointed out that he's a war criminal deserving his fate, yet if he wants to leave the country we'll help him pack his bags and give him a first class ticket to exile - no Nuremberg here. If he decides to completely disarm his WMD programs, but stay in power, well... that will be interesting.
As an aside, what I find interesting, but easily coincidental, is the impact Iraqi crude will have when we're facing a major sulfur reduction in onroad (and potentially off road diesel as well) in the 2006 - 2010 time frame. By major, we're talking 80% or so, which is a significant investment/profitability issue for refiners. This was one of the excessive holdovers from the Browner administration at the EPA, but one which is supported in congress and by the current administration for political reasons.
This will not be easy to meet, and may result in serious under supply in various regions as small refiners decide not to invest the capital to produce what is a secondary product. For those that do, it represents a significant loss of efficiency for refiners that produce the product by running multiple desulfurization passes, or significant investments for new cracking towers. The result is potentially (likely?) significantly higher diesel prices for several years (and, of course, higher prices for everything that moves via diesel). Not very welcome in an already recessionary climate.
Refiners that produce the new diesel will benefit greatly by having low-sulfur crude supplies (but they will still face some problems). Guess what type of crude we find in Iraq

Not something to go to war over on its own, IMO, but certainly another benefit behind a regime change that is not really public knowledge. BTW, if you depend on diesel or the trucking infrastructure for your business you better start taking this seriously. There is a lot of serious concern in the impacted industries over what will happen in 2006.
Charon