I would have to agree with that. It's never worth buying a cheap PSU as it will end up being a false economy. Always better to buy a good quality one in the first place and as well as being safer to run your system it will also last a lot longer. I would recommend a PSU like Seasonic, CWT, Corsair, Thermaltake, Enermax, Gigabyte, Coolermaster, Antec, etc and try and get one with a single 12V rail if possible.