Reply to Quickest way to record samples on OSX?

Hey,

I have finally nearly complete my bedroom setup and the latest edition is a Macbook Pro. So I wanted to know what's the best way to quickly record audio to use as samples. So say I'm watching a movie in VLC or a youtube video, how can I hit record in say Logic/Ableton and have the audio be fed straight into it?

I know I could use a video editor and take the audio out. But this is not quick and creativity is lost for me like this.

I have messed around with the Input/Output settings but I can't seem to figure it out.

Any help is welcome,
Tobes