I was thinking about changing the CPU to an Intel Core i7 2600K instead, since I read in a couple of reviews, that it outperforms the 970 and at the same time, it's cheaper. Would that require a change in motherboard? If so, what motherboard would you recommend? (Particularly concerned about the H67-chipset, I read somewhere that SLI wouldn't be an option with that chipset, and it is with the x58..)
Also want to change the cabinet to a NZXT Phantom, more fans and it's bigger ;)
find the LGA number (1366, 1155) of both chips to find out if you need a different mobo or not. im pretty sure x58 has limited pci-e lanes. look for if mobo is x16, x16 or x16, x8 or x8, x8 for SLI.