16 is definatly overkill, If you can find anything that requires or reccomends even 8gb let me know.
As for the PSU and the GPU, I have the PSU right now and the GPU is coming tomoz. The PSU has served me with SLI GTX 275's Superclocked ( Before my Mobo upgrade which made me lose interest in Nvidia's as per their Licencing **** ) and other power consuming ****e.
Why go for Intel Chip? Sure they can go slightly faster overclocked but again its overkill. My current chip is running at stock 3.2 x4 which is more than enough for any game even dreamt of yet and at a m
uch lower price. Besides AMD beat intel to the 1ghz mark and the dual core mark. They will sureley beat them to the next avancement leaving intel to catch up again. I prefer AMD for this. But this is your choice.
at the end of the day AMD / ATI are now one company so what ever anyone says logik dictates that a full AMD Chipset will work in harmony better than any other.
As that being said the last Intel chip I had was a Celeron Single Core 3Ghz so i know little about those.
Things i do know if that 16gb ram is overkill even 8gb is for now. The PSU you have is an excellent one and the GPu from what ive read is an awsome one too which ill find out tomoz or today in that matter.
The chip however.. Im an AMD fanboy because they got there first and intel caught up. I only settle for gold not silver.