I ordered the parts before I checked back to this forum so my rig will be as I described. I thought about going with the 2500k, because it was only 10€ more, but I would've had to change the motherboard because of the different socket, and the price would've been much higher, wich would have blown my already high budget (900€). The 2500k can't be THAT MUCH better because the price is almost the same, and I've heard that most of the games don't even use more than 2 cores. 4 core isn't a big benefit unless you do some heavy weight science calculation stuff.