Can I connect three projectors to my MacBook Pro? (not mirrored)

I am doing the scenery for an opera, which is supposed to be projected onto the flats using three different projectors.  What I would like to do is hook up all three projectors to my MacBook Pro, and have different parts of the scenery show up on each projector--meaning that the displays will not be mirrored.  Can this be done?

I created a similar set up using multiscreener and a few mac minis driving individual projectors and yet synced via wifi. This meant that the projectors+mac only need to be connected to power and not to each other.
http://www.zachpoff.com/software/multiscreener/
MultiScreener is a set of free applications that synchronize the playback of Quicktime movies on multiple computers, using a local network to tie them all together. (It can also sync multiple movies on the same computer using multiple monitors.)

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