That makes sense, I guess I just didn't think it through, because right now everything is on the 6 gig, but w/ no OS. But for that matter, why don't I just install XP, GameEx, NET Framework on the 40 gig, and then transfer all of the games on the 6 gig over to the 40. How much more space does he need for games?! I guess if he wants to add more emulators/games, it could take some space, but maybe I'll just tell him to grab a 60 gig - probably only a couple bucks more anyway. How big are the drives people typically use, and are they putting every game w/ every emulator on them? Thing is, I don't know that there is a place in the cabinet currently set up to put another drive. Probably wouldn't be that hard to mount it in there somehow, but why bother. He's not going to use this for the Jukebox, DVDs, Karaoke, pictures, internet, or anything like that - just the games. (He's got the thing in the kitchen of his townhouse! Thanks for the tips!