Hi Rounik, If i buy imac 21.5, is it not good enough to operate logic studio 9. I'm a begginer.I'll upgrade to 8gb ram, but i can't afford for an imac 27 . I just read all the post here, it was very helpful for me. In logic studio there is enough sounds so do i need to buy more sounds ? I did a Dj course n now i want to make my own mixes n new house tracks. My budget is 2.5k.