Check out the power of Intel's new on-board graphics that bundle with the new chipsets coming out in a few months:
http://www.youtube.com/watch?v=RBdEYfw3NCAThe demo happens in the first minute or so of the presentation. They are showing Starcraft II, side by side with a discrete graphics platform (probably nVidia), *while FRAPSing*. They capture HD video of gameplay, while playing, and it looks outstanding.
-j