Topixel :
What about chieftec gpa-450s8 450w? it has 80+ on it
http://www.chieftec.eu/en/psus/iarena-series/gpa-450s8.html
It says 80+ 230V only, which means if you're using it in U.S. it doesn't guarantee anything, either way it doesn't look like a good PSU to me.
I know you're trying to save money while building a rig, but the truth is, I rather people save money on their CPU, GPU, HDD capacity, and RAM capacity, but never on motherboard and PSU. It's like talking about insurance, do you want to try to keep yourself healthy and never buy insurance? or would you rather save some money by eating fast food once in a while and be able to afford an insurance?
Life is uncertain, so will your system. A good PSU will give you a better guarantee on a prolong PC even if nothing explode, a good PSU can filter the electricity going into the system in order to prolong the lifespan of your components. In addition, A PSU usually last a lot longer than the amount of CPU/GPU that people switch out throughout the lifetime of a PSU.
Good luck.