Hi, I have an iMac with isight (pre-intel circa october 2005). My computer has been running really slow lately (i'm guessing because my iTunes contains close to 20,000 songs). Anyway, my job consists of two major components taking up space on my CPU (music and graphic design). Eventually I would like to have a computer solely dedicated to music and then my other computer be for everything else. Now that the new OS is being pushed back until October I want to wait until I buy a new Mac. In the meantime, I need to make my computer run faster. Even Safari takes forever just to open and load. I've run programs, I've free'd up all that I can and backed up files to discs and deleted things. But I cannot delete any of my music. Should I just get an external hard drive? Anybody have any suggestions? And what brands, type, etc? Thanks so much!