I used FS 1.5 for about 3 years before buying SSL. At the end of the day they both perform the same function. Play your tracks without having to lug around 800 pounds of cds. At your current stage of dj'ing the fancy stuff should be the furthest thing from your mind. The upside to SSL is it's native MIDI interfaces. The CDJ-400 talks to SSL as does one of the new Dennon controllers. Rane also has several components that work hand in hand with SSL. They are also about to release a new version of Scratch Live that is suppose to be amazing. You can also VJ with SSL with the proper gear. I'm not advocating either system. I'm just familure with SSL so that's what I can talk about. Like the other posts said, I would try both of them and make a decision. Serato has a proven track record. I know several guys who are scared to go play with Traktor due to it's instabilities. --- Another thing: SSL provides all the software, any updates, and ISO's for the control cd's for free. You can download the software without having the SSL Box and use it as a cataloging program if you wanted.