I modded my xbox and here are some pics
(http://i11.photobucket.com/albums/a185/Loki363987/Whitelight.jpg)
(http://i11.photobucket.com/albums/a185/Loki363987/GreenLight.jpg)
(http://i11.photobucket.com/albums/a185/Loki363987/Bluelight.jpg)
(http://i11.photobucket.com/albums/a185/Loki363987/EVO-X.jpg)
(http://i11.photobucket.com/albums/a185/Loki363987/spwireless.jpg)
(http://i11.photobucket.com/albums/a185/Loki363987/Bluelight2.jpg)
(http://i11.photobucket.com/albums/a185/Loki363987/40gig.jpg)
So what do these mods do for the machine?
Allow you to backup yor games and play them allows you to play dvd's without the xbox kit.
this site will explain most of your questions
http://www.modwhiz.com
evo-x is a replacement dashboard it "opens" the xbox's potential.