CPU Cooler: - Phanteks PH-TC12DX 68.5 CFM CPU Cooler - is this really needed?
Obviously, unless you do want to experience this:

(Picture is from my laptop when playing SA:MP... alone!)
PSU is more than enough.
RAM is good.
CPU too, a fancy
quadcore even.
Drives look pretty well too.
GPU is pretty beefy.
I'd say it all looks great, but I can't tell if it runs GTA:V on higher settings, but I'm sure it can run it at least.