to answer one of your guys ?'s is I am going to use it mainly for gaming and MP3's. so i am looking to have the storage and the speed. I looked at those 10,000rpm drives and originaly that is what I wanted but the person who is building this for me dosnt like them and said that 7,200rpm would have no problem handleing the games I am going to through at it. Also I really dont mind the noise to much but quiet would be nice. anyway if I were to get 2 western digital 74.4GB 10,000rpm HDDs what would I have to do extra to my PC to make this work?