I'm still rocking an Asus Maximus II Formula with 4 gigs of ram, an Intel E8500 core 2 duo paired with a couple sata drives in raid 1 and a 6870 vid card.
This system does everything I need it to do and plays all the games with great fps.
So unless you are doing some work that is seriously cpu intensive, I'd say stick with what you have.
If its multi core/streaming encoding and other needs like that, then the more cpu and cores you throw at it, the better, but if its video gaming...the cpu isn't as important versus the vid card..
my 2 cents.
but yeah..if you have the itch to get new tech...by all means!
black friday deals are starting to roll out now.