If you're a gamer, this will interest you.
If you like to see how animation capabilites are progressing, this will interest you.
If you are using dial-up...well, you can still look at the pretty pictures - you ain't gettin' no video though.
(The vids average 150 megs - smallest at 45, largest at 200)
Anyway, check out the new Half-Life 2 videos
Quite cool, the work they're doing nowadays