I need some help folks... I never thought this would be so hard.. I have DJ equipment, and I'm trying to play my vinyl through my MacBook. The problem is I need a soundcard to simultaneously capture the audio from the line in, and playback to the speakers on that same device. My preference is to also have a soundcard capable of connecting 5.1/7.1 speakers as well. This used to be so easy on Windows, but finding it to be quite the challenge on this MacBook.