My band just finished a new album on which I play not only bass (I used to just play bass) but many keyboards and vocals, both background and some lead. I need to trigger many samples and play some keyboards live now, and even effect my vocal to get a multiple-vox effect live. The new Logic Studio MainStage application seems to be a great way I can do all these things live.

What is a good way to get multiple audio outputs in this setup? (i.e. what's the best interface to buy that does this? I'll need at minimum 3 audio outputs but 4+ would work too.) Any help would be most appreciated.

If you can afford it I would definitely go for the Apogee Ensemble which has 8 outputs and all the best specs you will find.

Or, if you don't have THAT kind of cash lying around, the Focusrite Saffire has 8 outputs, is firewire bus-powered and only costs about $400. Plus, it's small, portable and sounds great. Same goes for the Edirol FA-101, which is a bit cheaper and has 10 outs...