I purchased a MacBook Pro this summer and I'm looking into purchasing an external hard drive to use when I upgrade to Leopard next year, to use in combination with Time Machine. I have 120GB onboard, so I don't need something extremely large for the backup. But I'd also like to dedicate a disk to my music library only. So I was thinking of either purchasing two external drives or purchasing one product with two drives enclosed. Can anyone recommend what direction I go with this project?