agora já podem mudar a harddrive da 360 para 120 gigas com +- 50 euros vejam aqui
http://www.pcworld.com/article/150970/upgrade_your_xbox_360s_hard_drive_on_the_cheap.html
http://www.pcworld.com/article/150970/upgrade_your_xbox_360s_hard_drive_on_the_cheap.html