we are planning to open a new studio (with $15,000 worth of equipment and furnishing). The Tascam DM 4800 looks like the best bet. We want to use it as a front end that we will digital out into a M-Audio 2626 into Pro Tools. We also want to use it as a mixing control surface for Pro Tools. Anybody use this before and have any experiences on its usability, quality, and A/D converters?