Having looked at the reviews of the Intel HD2000 and HD3000 IGPs the latter is even faster than an HD5450 in some games. Even the HD2000 is trading blows with the HD4290 IGP in the 890GX motherboards. The Intel drivers seem to be fine with many games:
http://www.anandtech.com/show/4083/t...2100-tested/11
It is a good sign that Intel have worked on improving their IGPs.
With AMD Llano and Zacate also being released this year it means that even a cheap desktop or laptop would be fine for running many games at lower settings.
This is definitely good for PC gaming IMHO.