Well, if you really don't want FFXI why not get the PS2 Linux kit? It costs the same but comes with a usb keyboard and mouse, network adapter, and monitor cable. It could provide a clunky backup computer in case your main rig goes down or if nothing else you could sell the keyboard, mouse and network adapter for maybe 35-40 dollars and get the cost on the HDD down to 60-ish.
edit: the drive isn't formatted for anything but Linux use?! It can go to hell!