So I bought a HP H8 1414
And I was thinking to upgrade the video card virst, since I heard it was a little weak. I was thinking this : http://www.amazon.com/gp/product/B007B5V614/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Which one should I choose? And what power supply should I pick? I am a total noob at this thing :P I'm fine with only running AAA games on medium/s little high settings.