This deserves two links, since both are fantastic to watch. Man, you guys wouldn't believe so much cool stuff was left in Halo, but there's been a revival of sorts. Start with TwinBlade's variety video, showcasing some awesome loadzone manipulation, some grunty fun, and most of all the crazy hog action on SI. Wow! Then he expands on an idea in the next vid, and gets three hogs stuck into the lightbridge on Halo. Amazing stuff, make sure you guys don't miss it!

EDIT: This is some good stuff. I loved them both. :)