I think we're heading into the end game in Iraq. The situation's pretty damn good, believe it or not. The insurgents are a deadly nuisance, but they stand essentially no chance of affecting the results of the elections. The people of Iraq have gotten the hang of democratic processes, and seem to be embracing them. They don't particularly seem to want to get back into a dictatorship-style arrangement - at least right now.
At this point, all that remains is taking out the local zone bosses (IE Saddam, Zarqawi, and al-Zawahiri). The next zone, however, could be a real killer if the zone boss there gets nukes.
J.