They have been doing quite a few interviews on NPR with Iraqi people over the last week. Interesting thread is that they seem to be glad the Americans are gone, but also glad Saddam is gone, nearly in equal measure. Most of them feel it will be a positive thing for their country long-term, while right now they acknolwedge that the whole thing was incredibly painful and there is a large amount of uncertainty and angst in the country. But most seem more optimistic than pessimistic.
Of course, these are just the folks NPR is interviewing (and the interviews I heard, I only have a couple hours each day around lunch time and after work to listen in). I haven't seen anything along the lines of a national poll yet, which would be interesting to see.