Curious, how would go about to connect 3 monitors(which is the ideal amount of monitors if you want to do any type of surround monitor-setup) to a Mac? Is this even possible out of the box? Or would you need one of those little boxes extender -type of thing to achieve this?
With a Mac Pro you can add additional video cards to support multiple displays (most cards support two; some support three).
Of course, at this point, the Mac Pro doesn't have Thunderbolt so you'd have to use another display or the older 27" mini-DisplayPort Cinema display.
The newest iMacs and MacBook Pros (with TB) will support two displays plus the built-in one.
Edit: the mini and MacBook Air can support one external display plus the built-in one.
You can use one of the extender multi-display boxes, too, but I've not had any direct experience with them to know how good they are.