Wow.
Yes, that is possible, as the iMac has miniDisplayPort video out, which can be connected to other monitors via the appropriate adapter for DVI or VGA.
If you live on the NA continent, look for miniDisplayPort to VGA or DVI adapters on
www.monoprice.com or if you live somewhere else, maybe take a look at the
Apple Online Store.
examples:
Btw, I don't know if English is your first language, but if it is, does your browser support spell checking?
MRoogle is a good tool to search these fora for already existing threads about questions you have. It might be able to answer you quicker than waiting for an answer.