so both djm 750 and djm 850 can do what i need, so to me i dont see why i would spend the extra dough. any thoughts or opinions? ALSO two specific questions (of lesser importance): 1. DJM 850 is traktor certified, but anyone know if it works with TSP 1? 2. if i buy it here in singapore, and ever move back to aus one day is it just a matter of changing the cable