Two video outputs on a Mac notebook

Hi, I need your help.

I need to run a program at my church. The program requires two video outputs, one to view a control panel type screen and the other to "push" video to projectors. The software allows a person to create and control a video presentation on the fly. The audience only sees the video being pushed through the second video output, not the control panel being used to adjust/create the presentation. In short, are mac notebooks expandable to two video cards with out puts?

Thanks,
Drobuck

No, there is only one video output on the notebooks.
Why couldn't you use the laptop screen as the editing screen while the audience is watching the projection?

You could always get yourself a USB output device

I heard back from the software company. It sounds like the laptop screen will work as a video out. I don't know why I didn't think that would work initially. Thanks for your help.