OP, not sure if you're overclocking or not. If not, don't buy the aftermarket cooler.
>>Upgrade to Core i5 2500K
>>Switch that PSU out for atleast 500W
>>Upgrade to 7850
That is what basically the "cookie cutter" PC build is. Though if none of that permits to your budget, your current build is fine and will work and play games. I'm just trying to suggest how to "future proof" your PC better.
Good luck!