Windows Vista Aero in slow motion
One of the newer things in Windows Vista is the Aero interface, which includes, along with the new "glass" window effect, a number of transparency effects. These effects are designed to be pretty subtle, but if you want to see them in action, you can do it in slow motion.
Instructions on how to enable this effect on your own Windows Vista PC can be found on TweakVista.
Here's a video of slow-motion maximize and minimize: