Help with shop's spec for my PC

[Fallen god]

I would maybe get a cooler if you can and switch to this PSU, the PSU should help with air flow and keep everything more clear, and with the cooler you can get a nice overclock on your i5.

http://www.overclockers.co.uk/showproduct.php?prodid=HS-009-TI

http://www.overclockers.co.uk/showproduct.php?prodid=CA-117-AN