I prob err on the side of caution and don't delete as many files as I could. My feeling is that free downloading could one day stop as suddenly as it started, so it's best to hang on to what you've got...
I'm glad you mentioned Ozric Tentacles because I'm really ambivalent about them. It all started with, "Wow this is brilliant, but for now I've had enough." Then it progressed to, "Hey, they are brilliant. I should listen to that again - but later", and now they are just a file I never open.
