Looks like OIF books are hitting the shelves. I picked up two in the last several weeks "The War in Iraq" and "Witness Iraq."
Both are compliations of photos from various photographers throughout the war. Both are more focused on the human element of the conflict (toops and civilans) but have a lot of great reference photos, particullary of coalition GIs and their equipment.
I just picked up "Witness Iraq" today and haven't given it a full read, but it appears to be the nicer of the two publications. As a hard back it's also a little more expensive (about $30 USD I think). "The War in Iraq" ran about $20 USD
I suspect well see more books soon, and probably some just for us modelers.