The Fire GL V3600 is a dualhead card. You'd need 2 of them. Unless you are going to run 30" monitors, a better choice would be the Nvidia Quadro NVS 290. You'll need 2 of them also, but the T3400 usually comes with one.. just add a 2nd 290.
to confirm -- get the The Fire GL V3600 is a dualhead card. as I will be running 4 22inch monitors? correct thank you for the help
Personally, I would not use the Fire GL, nor any video card with a fan in a trading rig if I could avoid it.