I'd aim for a i7-3930k
I'd rather say a 2600K/2700K, The 3930Ks aren't worth it IMo, you could get very similar performance with a 2700K, only thing I find different is Hexa-core, QUad-core is good enough for everything, and more than enough for gaming, while a hexa-core is only really if you do intensive editing or something.