I ordered my first MAC (brand new MacBook 2.16ghz, 4GB RAM) but it only has 160G Hard Drive. I want to keep the internal hard drive free from music & videos so the CPU can access other apps. or files quickly. So this leads me to ask you Mac Genesis where should I install itunes? - Should I keep itunes in laptop's HD and move Music, Videos, Artwork, etc. to external drive? - pros & cons? - Should I remove itunes from laptop's HD and re-install it in external drive along with music, videos, artwork, etc.? - pros & cons?