I have an old 1991 sampling workstation/keyboard, the Ensoniq EPS 16+ I sample, play keyboard, sequence and compose songs with this machine. Now I would like to sync it up to my Macbook, so that I can record the songs as MP3s and possibly compose on the Macbook as well. I want to be able to access various instruements which are stored on the Macbook, and play them on the keyboard. I was told that I would need an audio interface to do this. Can anyone give me an advice or recommendations on what to buy? I would also like to connect one USB record player into the setup, so the audio interface needs to support this connection as well. Any help would be much appreciated! Thanks.