I used to use an Echo Audio Indigo DJ Cardbus card in my old Powerbook so that I could get two stereo audio outputs for DJing. However, now that I have a MacBook Pro, I'm looking for a similar solution in ExpressCard/34. Anyone heard of anything like this out there? Yes, I could use a USB/Firewire audio device, but that's more hassle when lugging my gear around everywhere (extra power adapter, cables, etc). Right now I'm just splitting the analog audio into two mono signals since fidelity isn't a major concern (though it would be preferable to have stereo outputs).