I was going to get a seasonic psu but i'm running low on cash. will this work for now if I don't overclock at all? the gtx670 was a gift and the only other hardware in my pc is a 2500k cpu, 1tb hard drive and 2 fans. the power supply is only $29 after mir. http://www.newegg.com/Product/Product.aspx?Item=N82E16817341016 what do you think?