FSP is fortron and its 80 PLUS Bronze Certified - it´s efficiency >82% (http://www.partis.cz/index.php?gid=1535)
also my current setup with c2d e7500 @stock draws from wall cca 140W under full load in games
(cpu itself has 77Watt TDP, 5750 has TDP of 86W and 660 SC S2 has TDP 140W)
The FSP unit can output 408w on the 12v rail which translates to 34 amps. 34 amps is more than capable enough for a single GTX 660 and a Q9550 along with some overclocking. It's a decent psu and you'll be fine with it.