Transfering Data

I finally decided to transfer data to my 120g drive last night.  I didn't want to transfer everything with the transfer cable and wipe out the old drive.  It is going upstairs for the family to use.  I wanted to leave the arcade games on it and all the demos my kids like to play.  It is not going to be hooked up to the internet.  I recovered my gamertag on the new hard drive.  I then redownloaded all the games and maps I had purchased.  I then used a borrowed memory unit and transfered all the game saves I wanted to transfer.  Now I have two machines with all my arcade games on it.  The family has there machine to use.  The one thing I wondered about was after recovering my gamertag, the 120 g drive said I had 103gigs of memory left.  That is before I downloaded any games to it.  The old drive only had 14 gigs of stuff on it.  Not sure what was using up 17 gigs of space but other than that, life is good.