Here is a link that basically walks you through on how to disassemble the entire xbox
http://www.401error.com/401error/xbox/XBOX-howto_high.cfm
Here is another site that does both mod xboxes and also displays ones where people have put thier guts into other cases etc
Xbox Transformed
http://www.xb-t.com/gallery/details.php?image_id=17
http://www.xb-t.com/gallery/categories.php?cat_id=113
Some more links I can't seem to find the exact one but if you look around in the forum you should find it
http://forums.xbox-scene.com/index.php?showtopic=103427&st=405