@willhopkins tips (cont)
4) If you're recording via Skype then make sure both parties are recording the audio (as best you can). There's nothing like losing audio because someone thought they'd pressed "Record".
5) Do not use gaming headsets for recording. They are optimized for a narrow band of frequencies. Get proper vocal microphones (I recommend Blue USB microphones).
6) If you have more than two microphones in a room get a mixing board.