good monitors are important, but their job is to give a flat freq responce so that you can mix a track to sound averagley good on any sound soruce you play it through. you can make a killer track through your own set up but play it elswere and it may sound a little flat or just not as good. to make a killer track you need good monitors, good computer set up and a little knowlage about phyco acoustics and the limits of a sound wave gong through different types of audio set ups eg club system, home hifi and car stereo. You can get this from books and there are many quality studio cources out there these days. hmm maybe one day i will learn to spell !!