I also agree that getting Saddam out of power was a good thing. I'm just not sure that the way used was the best (in term of immediate human and material cost and in term of stabilizing the region). It's hard to know how many Iraqi civilian died, but most numbers I found are around 10000, that is 3 times the casualties of 9/11. Some might think it's not that much, but I do.
The way I see it, the rush to war was justified by some immediate danger, which seems to have been fabricated. From an international point of view, it does not matter anymore (from a (American) domestic point of view, it matters if the truthfullness of the administration is a factor in reelection). I just find it sad that the international community did not try for a little bit longer. It seems that progress was made near the end, thanks to the pressure of a possible attack, which unfortunately occured. Now, from an international standpoint, is time to rebuilding. And to see whether the US invaded Iraq, or if they liberated it. (a quick test to answer: who is governing, and who is using the resources)