Triple Monitor Setup graphics card needed

I am trying to set up triple monitors. I already have 2 monitors hooked up to an nVidia 7950 GX2. I am looking for a graphics card to attach my third monitor to. Any suggestions that will work with my mother board
Here are my specs:

FOXCONN NFORCE 590 SLI MOTHERBOARD
650 WATT POWER SUPPLY
Athlon 64 X2 5000 AM2 DC processor

I would like to be able to span games across all three monitors? what graphics cards can you guys recomend?


here is the card I am thinking of, will this work in my system
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121255
ASUS EN9600GSO MAGIC/HTDP/512M GeForce 9600 GSO 512MB 128-bit GDDR2 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card