Is there a general rule that would apply to most pcs these days, like I know not to buy a hdd slower than 7200 rpms, but might it be smarter to install all windows files and programs on one hdd (lets say, 40 gb) and a 2nd drives for music, pictures and w/e. I thought maybe that would help in case I needed to reformat the windows drive, then I wouldn't have to even bother with my music drive. Or should I even consider RAID if I don't play modern games? I realize it's supposed to be more of backup, but anything I have that important is on a dvd already. I'm sorry if this was already disscussed (i searched to no aveil) but any help is appreciated!