hi guys, I am using a 40GB Ipod and a 80GB harddrive Imac. I know your Ipod is like a mirror for your Itunes library. Currently I have 10GB of music uploaded to my ipod/itunes and only quarter of my cd collection is installed. I realized that if I rip all of my cds to Itunes, it will take it just fine (since my ipod has 40gig space) but will use 40 GB space also from my hardrive. I think thats an awful lot of precious hardrive space. Since I only listen to my cd collection one at a time, either thru my ipod(when i'm mobile) or thru itunes.(when i'm in the same room as my Imac) Maybe there is a way to only use 40GB not 80GB( both IPOD and Itunes) I prefer to free up my harddrive space and still listen to my collection thru itunes or via ipod in my computer. .