Rather a highly debated question in my opinion, but does spinning down a hard drive for power saving decrease the life of a hard drive? I Have 2 G3 imacs i have on my top shelf and i use them both (lol more the orange ) and obviously when the screen saver goes on the music continues to play but when i move the mouse the computer freezes and waits for the drive which i can hear come humming back to life. Ive read that having this setting does slowly shorten hard drive life. But its back and forth. What do you guys think?