I'm currently using a IBM 60gxp as my HD, set to primary master. My secondary IDE has a DVD and 24x cdrw on it. I'm getting a 40gig 5400 rpm maxtor HD tomorrow... what's the best setup once I add it? Make it primary slave? How much performance difference would there be between that and adding a IDE controller? The maxtor is going to be just storage - movies, mp3, etc. So blazing speed isn't critical on it, but I also don't want to slow my 60gxp any.