I am basically upgrading my current set up completely except for the motherboard, optical drives and hd (I can't afford anything better so I want to do the most with the least $$). I though that changing my mobo would be good as well (stock Dell trash and 4+ years old anyway). I realize I could probably do a lot better with different equipment and it's being considered, but just stick to the question, 'kay? So, if I were to connect my old HD to a newly built rig, what I do need about attaching the hard drive to new equipment (assuming new mobo as well)? Basically, I know how to hook things up, but as far as the software aspect of it. Is replacing the whole thing as smooth as replacing the graphics/sound drivers, etc or is there more? Thanks in advance.