hey guys i wanna start dj'ing with turntables and mixers insteap of some tiny ass controller you know? ever since i found out about scratch live i've been crazy abot it and all other softyware i just hate. my only problem is i have a budget of 400 bucks and my setup of two turntables are around 300 and i absolutely cant afford 500 dollars for a little rane signal box. so i was wondering if i could use a usb mixer to connect to scratch live. because if i can only use a box it crushes the dream. so is there a way to do it or should i just get another controller? and btw if theres any software similar to serato feel free to suggest...thanks