Even the Anti-War leftist sites know the "study" you (and the mainstream media) refer to is complete bullcrap. Of course, any study released 4 days before the Presidential election is a little suspect but, then again, I don't expect any of the people who cite it to understand statistics or the study's inherent flaws.
Anyways, here is a better estimate - a body count less than those who would've died under Saddam's rule anyway (due to famine, starvation, etc.)
Link
Sorry to disappoint you about the number of dead in Iraq.