I don't plan to OC my computer, so I don't think I need any new cooler. I am not a hardcore gamer, so i am not sure if this GPU is decent (or should I get something else around this price). The reason I pick this 500W PSU, because I don't think I will add any extra GPU later. Please give me some advice to make this a better PC.
That graphics card might be overkill if your not a "hardcore gamer", have a look at the next price bracket down. You might find a cheaper model that will suit your needs fine. Then again, it depends on how much money you want to spend.