You've probably all seen this site by now. It's really good for fast cutting music videos. It's also neat for letting you loop youtube videos, something that Youtube itself doesn't have yet. Here's some of my junk running through it rather nicely:
The Labbox - Out of everything I tried of mine this works the nicest.
JehJeh - This will make you dizzy!
The Red Button Remix - Will blow your brains out near the end.
And of course you can never beat a bit of ol' Sledgehammer.
Bloody hell, has it really been that long since I posted here?