Hi All - newbie here... hoping for some advice. I have a late 2011 Macbook pro, 15". The processor is 2.5 GHzIntel core i7, it has 4 GB memory, 750 GB SATA disk. It runs very slowly, iTunes takes forever to load, I'll be adding 8GB memory. I have about 15000 songs on it, and want to keep those, as I do some DJ'ing... the storage only has about 38 GB left of the 750... How can I figure out what to remove of the 252 GB of "other" to remove? Anything else to upgrade? Would an SSD help me out? Any recommendations and suggestions please!