I am new at pc building and I just bought an old pc that I hope to upgrade into a decent gaming pc using the best deals I can find. mainly because I don't have a lot of money , I mean I'm just a poor highschool student . ok enough of that here's the problem I found a gtx 580 for 30$ which is a pretty good deal but the psu that came with the old pc I bought is only a 380w psu so now I have a system with a gpu that I can't run . I have 80$ left but that's all I have and I still need a monitor and a keyboard. but I've heard that the psu is one of the most important parts of a pc so I figured 50$ should be good . on Amazon I found a corsair vs 600w psu for 37$ I know corsair is a dependable brand and this would satisfy all my immediate needs but I'm open to suggestions.