i was just browsing YouTube videos of Half-Life 2, and i came across these:
“Science Strikes Back”:
(http://www.youtube.com/watch?v=vPA6QzlaFO4)
“So Cold – Music Video”:
(http://www.youtube.com/watch?v=8N4exr15q3U)
“Music Video – Session”:
(http://www.youtube.com/watch?v=QAK4oG6gCYU)
“Head Crab Music Video”:
(http://www.youtube.com/watch?v=KsD-_0IpWLY)