Recommended PSU for new upgrades

My computer specs:
-i5 4460 3.20GHz
-MSI GTX 970 4GB
-Corsair Vengeance DDR3 1600Mhz 2x4GB Dual Channel 8GB kit
-1920x1080 LG monitor
-500w Corsair CX Bronze (NEEDS REPLACING)
-1TB WCD Hard drive
-ASRock Z97 Anniversary Motherboard (Socket 1150)
-Windows 7 Ultimate

Hi Community

I'm upgrading my pc in a week and I would like to ask which PSU I should get to sustain my PC.

I will be replacing my i5 4460 with an i7 4790K and installing a SSD for the OS as I'm going to reinstall the OS for a clean build.

I was thinking of the EVGA Supernova 550 W Gs Gold 80+ as it is high on the Toms PSU tier list, great price and has very good reviews.
Has anyone had any issues with this PSU such as it blowing after the first plug in or just randomly dying after a month or so as I don't want a new PSU to kill my pc, I can't afford a full system replace especially with the GPU I have which is the most expensive component.

Regards
 
Solution
The 4790K is a great CPU. It turbos to 4.4 ghz. without any overclock so you should be fine for a few years. The EVGA 550 GS will be a good dependable power supply also.
The best PSU in the world can fail. It's the nature of electronic components. The EVGA GS series is made by Seasonic and is very high quality. When you buy a high quality unit your chances of problems are far less. The EVGA is a good choice, certainly better than the Corsair you have now. If you plan on overclocking the i7 you should consider a better motherboard than the low budget, bottom of the line Z97 anniversary and you'll need a better cpu cooler than the stock model.
 
...Okay SwizzleDude i think you have misunderstood or something..

I have a CX 500w which is 2 years old which is a miracle in it's self as it is one hell of a budget PSU with cheap parts. I'd like to get a new PSU before my current one dies and damages my pc but also one that will last for a long time and can give nice clean power to my new upgrades In a week.
 


This will probably sound crazy button I'm getting the K one as it is the most powerful CPU for my system. I want to stick a CPU in that I do not need to remove for a long time.
 


Am I right in saying that because it has 4 cores and has 8 threads when I play a game and have the after-burner overlay on it will show the temps for 8 cores or will it just be 4 like my i5's?
 


Looks like your one of the lucky ones like me, you should think about replacing sometime soon.

And why would you recommend a PSU which is practically the same as the one I want replacing... you have no idea..
 


It only has 4 real cores so I don't see how the software could measure 8.
 


Also on the subject of the cooler if you recommend one that is better than the stock one but clicks into the place the same way that the stock one does I would greatly appreciate it.
 


I have had a look and I was wondering I would I install that?
Where are the bits that click into the motherboard?

Because the intel stock cooler has these bits on each corner you have to turn 90 degrees then put the cooler in the mobo's holes then press the poles on the side down till they click into the motherboard.

Also which way would I face the fan? As the stock one faces up compared to this cooler.

 
There's youtube videos that show how the Arctic cooler mounts. I have that cooler on my 3570K and it was very easy to mount. It has the plastic push pins like the stock cooler. Ideally the direction of the cooler would match the air flow in your case. Most are front to back.