I have just 1 main goal with my Xbox 360: -Be able to play Xbox and Xbox 360 games from an external hard-drive. So I guess that goes without saying that I want to be able to back-up my Xbox360 games onto the hard-drive if possible. What is the best way to go about this? Could I still go online with the Xbox? Also, I wish to accomplish the same thing with my Wii(play gamecube/wii on external) and PS3(play ps2/ps3 on external). Thank you .