I want to add a new 60gig hdd to my computer, in addition to the current 20gig I have now. I want my 60 gig to be the primary C drive though, and make the 20 gig another drive letter. I want to copy the 20 to the 60, making it the one with the os and everything I currently have, then format the 20 and use if for extra space. I'm guessing the 20 has to be set to slave. Am I right? if so, how do I transfer data to the 60 from the 20, making the 60 the C drive and preserving functionality? thanks.