The death of Saddam, in geographical terms, may not have a huge impact on us. The death of a dictator, like his life, is always so unexpected.
However, it must be said that his death will have an impact on China - this is the "butterfly effect" theory, and for China, it's a huge butterfly!!
Firstly: International oil prices are going to rise, which is predictable. With Iraq, an important oil-producing country, inevitably falling into continuous chaos after this, oil prices will definitely soar! The U.S. probably feels the pain too...
Secondly: The military buildup of China and other countries is bound to increase. There's a precedent right there, the U.S. won't be idle, they'll likely find a few so-called "rogue" states to practice on. Everyone needs to guard against that, and as a result, defense spending will go up.
Thirdly: The situation in Northeast Asia will undoubtedly become tense behind the scenes. North Korea is probably mulling over the implications. The economies of surrounding countries will inevitably be affected.
And furthermore,........