If you wanted to buy Mac and use it as dedicated system. First, buy you one with highest memory (minimum 2 Gig) and delete all unwanted application such as word, excel... you don't need these application to play music. they just slow down and waste space of your laptop or desk top. Second HD capacity, some refer high GIG. But me personally I'll choose a Slow speed drive something like 5400 rpm (quiet) with 80 or 100 Gig. Because i will store my selected songs in the external drive, it easier to manage and nothing else in my internal except OS. And remember external drive now day is very cheap compare to the high gig in your laptop or desk top. Do more research on external drive and get you a quiet one. Try buy two 500g instead of 1 Tera itself. Save your money less headache. Have fun! enjoy.