http://youtube.com/watch?v=LsXZGA9a6MI
LOL. That's way overdoing it, but you get the point. It can be ugly, but some people don't care, as long as they don't have to ship the 360 to get repaired.
www.xbox-scene.com has great tutorials in their hardware forum.
http://forums.xbox-scene.com/index.php?showtopic=471958
Tons of tutorials on there for tons of different things you could do.
Here's some completed 360s other people have done:
http://forums.xbox-scene.com/index.p...=463734&st=270
Just go backward page by page.