Saddam should be tried in an international court. His crimes were not explicitly toward the U.S.
I really don't think that the U.S. should have the right to go into a country, grab the leader, and then decide what to do with the former leader just because 'that's the way they see fit'. He should be tried in Iraq for crimes against his citizens, other countries, etc.. He will likely end up dead, but then again most ruthless dictators do.
If the U.S. refuses to allow an international court process then it will lose a lot of respect - not for capturing him, but for the attitude of "We can do what we want, so STFU".
