Two persons independently using one MacBook Pro Is it possible for such a setup as the following: Hooking one MacBook Pro up with two separate monitors, two separate mice, and two separate keyboards, allowing two different persons to work independently on their monitors, sharing the computer's performance?

Perhaps this is a strange request, but it would actually be useful for me in certain situations. With enough adapters, simply connecting the computer to the necessary monitors, mice, and keyboards should be possible; however, the interesting part is how to allow to share the computer's performance and sending independent data to the two monitors.
no, in fact you cannot SIMULTANEOUSLY use a system with two separate users logged in simultaneously on two different monitors.

several other options may allow something similar:
1 user logged in on the display.
2nd user logged in via SSH to terminal as any available user.. 

However this won't allow the computer to drive 2 displays - the 2nd user would be able to do terminal commands only, and could in fact overide any actions done by the first user (depending on permissions, user account, etc)...