I saw an ad for Mackie that said they had made some firewire mixers. On the website, if I am understanding properly, it says that all you need is the mixer and a firewired PC. That sounds like a pretty simple rig. You can't beat that. But wait. They use Tracktion2, of which I know nothing. My guitar player already has the mbox and digi001 version ProTools at home. And he has the big Control24 version at work. So it's pretty convenient to do our recordings in ProTools. But I want to have a decent studio at my house and I would like to be able to record more channels than just two at a time. So I was thinking 'Wow 16 channels at once via firewire. That sounds like a real winner.' But will it utilize a software that won't mate with what we already have available? Or could I get the digi002 rack with its inadequate control surface, AND get the Onyx 1640 with its much more user friendly control surface, and use them together. So I guess I'm saying : 1.) First and best choice; Mackie Onyx 1640 and a computer-Tracktion2 works with ProTools so we can record at both places and have it workwith no extra costs. 2.) Next best choice; The 1640 and a computer and a digi002 rack set up- Tracktion2 WON'T work but the Mackie mixer sends enough infor to work as the control surface like the digi002, but with more channels. 3.) Keep looking choice; The Mackie won't talk with the digi002. Neither system will work with the other. Find some other option. Tell me which is most likely true. Help me. Please.