12-29-2008, 10:15 AM
I guess it would depend on how much space you'll need for saving games. I've read that the memory card that comes with the arcade console can get cramped pretty quickly. If that's not a problem, then you can pick up a 120GB hard drive on ebay for around the $100 mark any time, and the 20GB ones sell for around $30 to $40. I have the 20GB model, and like you I'll never fill it.