I will OC my GPU but not my CPU because there is not a lot of point, and it's not a K version anyway. No game comes close to really benefiting a lot from a overclocked CPU. They are nearly all GPU bound these days.
I do max all games pretty much. Just not as smoothly as i'd like. BF3 campaign on highest settings dips down to 25fps for quite a while on some levels which isn't satisfactory. And X-Plane I have to play on medium settings. There is no way I can play that on max.
There are people that upgrade much more often than me on this forum...
I have a potentially better idea of what to spend the money on. TF's favorite piece of tech! the new iPad