The days of "everyone wants to hear a demo" has arrived (actually it arrived a few years ago). May I tap into those of you arranger players who recorded demo's? How did you do it?

I have tried making a demo over the years and they never seem to come out right. Not the musicianship, but the sound. It never seems to sound integrated or with any life force. I even spent a month in a studio with nothing to show for it.

I have a Tascam 644 MIDIstudio 8 track tape recorder, and a Roland BR1180CD Digital Recorder (unused so far), and very good microphones.

I'm particularly looking for that fat, thick sound on vocals that Donny has on HIS demo's.
And...a general "full" sound on the whole kaboodle.