I love the theater feature in Halo 3. Basically, it records everything you do, and you can fly through your replays and take snapshots from any angle, and then upload them. You can take videos, too, but I don’t think you can download them onto your computer?
JoE being badass in co-op against The Flood
Yours truly getting the drop on some fools in Team Slayer
A most embarrassing position for me to get killed in!
subhumanzoids 
Har Har Har!!! F-ing R-some!!It is now my new desktop. Thank you!