It probably will work, but i can not guarantee it. AMD advices 300W but that is allways overstated.
Afraid i don't know very much about the lower powered cards so maybe there is one wich is better and will run also on that psu.
Googled a bit and the HD5570 is mentioned also. Only you have a pcie 1.0 mobo i think and sometimes that gives problems with a 2.1 card so you should take the 2.0 version like this one http://www.newegg.com/Product/Product.aspx?Item=N82E16814129181
Normally i wouldn't advice VisionTek but they give lifetime warrenty so how bad can it be.
The 5570 would be far better than the 210 ; http://www.hwcompare.com/195/geforce-gt-210-vs-radeon-hd-5570/