That is most definitely not worth getting. If you wanna waste money get two 6850s or 6870s and put them in crossfire. If you want a single card and you have too much money just get the 6870 or 580, dual gpu cards are overrated. Any normal mobo with a pcie x16 slot should be able to handle a single card, if you want to crossfire just make sure it's supported by the chipset (though practically every mid-range and higher amd chipset can crossfire )
Get it, decent for 90 bucks
I got a Asus GeForce EN GTS 450 1GB GDDR5 for only 108 bucks
The Minimum required card to run games is Nvidia Geforce 8800GT... Having the Geforce 9800GT is good cause you can run Fifa 11 on it... SLI those 9800GT...