Over time I have accumulated quite a big iTunes library and on my MacBookPro with 500GB I have about 10GB left. Any sollutions? If I set up an external drive, how will it affect my running iTunes? If I use an external drive, do i need to re-install iTunes every time? Can I use the time machine on my Time capsule? Which cleanup programm do you use and is it helpful? Any advice would be most apreciated!