Hi,
I just bought an XBOX a week ago and then used a Game Exploit to mod it without a mod chip or opening my XBOX which means I retain my warranty!
I can now run backup discs, XB Media Player etc and run games from my XBOX HD.
See
http://www.maxconsole.com/?mode=tuto...xbox&itemid=87 for further details.
another place to look is
http://www.xbox-scene.com/tutorials....,0,0,0,0,0,0,0
If the above link does not work then just goto xbox scene, click on Tutorials and then click on No-Modchip Exploits
I used the Action Replay and Mechassult method - probably the easiest but you do need Action Replay and original Mechassault (not a backup!)