[SOLVED] Triple Monitor

I recently built a new PC for a family member who wanted to have a dual screen set up, not for gaming just general browsing/word processing etc.
I ended up building it on a GA-A55M-DS2 motherboard with a pretty basic dual output video card (Nvidia)
Now he's talking about having a triple screen set-up!!

What I'm trying to find out is whether its possible to somehow utilize the on-board graphics along with a dual output graphics card to achieve this? or whether I will have to go the eyefinity route (not ideal)