I was thinking about Raid, but I don't know much about Raid.
They are SATA drives 500GB, and partitioned for each topic like, Data, Pictures, Music..... Yes I know.....tooooo much.
My OS is W7 64bit, Main drive is 120GB SSD, Asus mobo P8Z68-V Pro/Gen3, Intel i7 2600K 3.4G, 8MB Ram