for someone like your father if he is anything like my father hewould not like to pay a bomb for power supply!!!
i bought 1 of these for my father!! less than £30 similar specs he has a 9600gt and dual core and micro atx p5k board
and it runs his stuff ok
oryxx titan!!! cheap psu but pretty stable his is nearly 2 years old still going strong and his is runnin
650W Max output
+5V = 36A, +3.3V = 34A, +12V = 22A,
-5V =0.3A, -12V = 0.6A, +5VSB = 3.0A