alas, welcome the apogee duet. in addition to using pro tools, i have been a longtime user of ableton live and i also know apple's own logic studio fairly well. they are both excellent daw's and they're also very mac-friendly. knowing that a quality maker of sound cards, apogee, teamed up with apple a couple of years back and started making sound cards that integrated perfectly with os x really helped me narrow the search for a product.