At the moment amazon is selling the 2500k and 3570k at the same price, and I can't decide which one to get. I will be getting the sabertooth z77 and I really can't decide the best option. Everyone on the forum says the 2500k because of the price, but if the price is the same what should I choose. I wont be doing any crazing over clocking and probably end up keeping the retail heat sink.
The 3570K is your better option given how you said you would use it.