Could I run 3 moniters with 2 graphic cards on Dimension e521?

[Justinkea]

On board graphics card:Nvidia GeForce 6150 LE
Graphics card in pcie slot right now:GeForce GT 430
CPU:Athlon 64 X2 dual core processor 4000+
Ram: 4GB
OS:Windows XP Professional (Gonna get windows 7 soon )
Power supply: 305 watts

 

[Alpha3031]

you can run 3 monitors on one modern graphics card, no guarantee on the quality/ resolution though