So my parents just got an imac, and I would like to use their old Dell Dimension 4550 as the basis for a hackintosh. The purpose of the computer would be mainly for ripping DVDs and storing the itunes library I have synced to my apple tv. The specs for the Dell can be found here.I am curious what I could reuse and what I would need to get replace. Obviously I would need a new motherboard, CPU memory and video card. But could I reuse the case, optical drives, and hard drive? Just need a little guidance in buying and such