Hi, I'm looking at buying a new MIDI controller/audio interface and the M-Audio Ozone is almost perfect for my needs. There are just a couple of problems with it: * It uses USB instead of Firewire which limits your audio bandwidth. * It requires a wall-wart power adapter which limits it's portability. I'm looking for the ultimate MIDI keyboard and audio interface that is portable and I can bring with my PowerBook to live gigs. Does anyone know if there is a new version of the M-Audio Ozone coming out soon that might overcome these limitations? The price is pretty good on the Ozone ($249.00 at audiomidi.com) but it seems like USB audio interfaces are on the way out and Firewire is on the way in. I don't want to get stuck with yesterday's technology. Thanks in advance for your advice!