Multiple Display Question

I have an installation at a church where they have the setup below. THey want to add a second monitor to the computer but have it mirror what is on the projection screen.

-Dual DVI Video Card (One connected to the LCD and the other to the Projector)
-The desktop is extended so that the projector does not show the desktop (start etc... just a blank screen)
-They want to add second LCD Display to the computer so they what is on the projector up close.

Question: Is it possible to add the second LCD and have it mirror the projector screen but still be an extension of the desktop? So, the end results would be: LCD 1 has the desktop (start etc), LCD 2 show the extended desktop, Projector shows the same thing as LCD 2.

I may be over complicating this. Can I add a second dual DVI video card to mirror the extended desktop and use the other video card for the standard desktop view?

Thanks in advance!

-Doug