I apologize for my HD noob-ness (all I currently have is a Wii) but I am looking at refurbished Xbox 360s, just to be able to play FFXIII. The Arcade edition is generally about half the price of the other editions (and I truly cannot afford more than that.) Is there any reason FFXIII cannot be played on a 360 Arcade, before I waste my money?

Also, if a standard Arcade edition cannot support the game, is it better to buy a separate hard drive and install it, or would that not be worth my time?

Thanks!