Have IBM clone, Windows 95 (FAT 32), AMD 166MMX, 2.4Gig Western Digital HD, built one year ago. The hard drive is partitioned into C: and D:, with E: being the CDROM. I need to add another HD, probably around 6 Gig. What's the difference between IDE, SCSI, etc. Is it the cabling and connection types for the HDs? Can I add another type, or should I match it to the type of HD I have now? I also would like to make the new bigger drive C:, use the old one as D:, then reformat it. How do I dump everything from the old drive to the new one, and still make the new drive C:? Not sure how this will affect applications, etc if a program is changed from one drive letter to another, and other such potential problems.