You mean the secondary 4pin molex? Or the extra 4pin in the main connector? Either way your motherboard has both..?
http://www.newegg.com/Product/Produc...82E16813131569
Or are you talking about the eps extra 4 pin? Thats for intel pentium d motherboard which required the extra full 8pin power. You wont need it on yours, just dont use it.
Otherwise that forton is a excellent unit. But a even more beefier one would be this one.
http://www.newegg.com/Product/Produc...82E16817101516
Tagan u22. Excellent high quality, stable unit. Has been powering some crazy hungry overclocking machines. Either one of those, the forton or the tagan would be excellent.