Ank34 :
My Setup :
-CPU : AMD FX-6300
-GPU : HD 7790
-HDD : 1TB
-Mobo : Asus M5A97 LE R2.0
-RAM : Corsair Vengance 8GB (1x8)
-PSU : 550W Corsair
-Cooler : Help me decide (doubt I need one)
If you're going 8GB RAM you're better off going 2x4GB for the Dual Channel performance benefit. If you're stuck on getting 8GB per RAM slot then get 16GB.
For the cooler I'd get something like a Cooler Master Hyper 212 EVO as you can find
HERE. That should keep your CPU running cool and relatively quiet.
For the Power Supply I'd make sure you're getting a solid 550W 80+ Gold rated unit. Those FX Processors do like their power so a good PSU will make sure you're not wasting most of those 550W of power as exhaust heat.
That's it pretty much.