I want a really cheap less than £100 dj set-up just to learn on. I've seen the Hercules DJ Control MP3 e2 which just connects to the pc. I was wondering about the use of headphones, how do you get it so the headphones can preview the song before the song plays on the speakers? I have a sound card the Asus Xonar DG 5.1 PCI would this work?