A really cool GT countdown with the scariest games of all time! I won't ruin it for you, but I could mention a few other games that they didn't: Bioshock and Alien vs. Predator Gold! Enjoy!

Here's an extremely realistic water simulation (the most accurate I've seen so far actually) which will take gaming into a new age of realism. You'll probably need a physics acceleration card for it, but with that kind of realism, who cares?