[KG64_Cnopicilin]

Well, that's true, but you also have the fewest features on the board self

Here in Holland, the P67 boards also start at a price around ~€100

Also, the i5 2500K has a better price/performance ratio, it's 180 against 270 euro's, and the difference is not so big They both overclock easily toward 5Ghz
I don't know what you are exactly planning with your PC?

For the maximum performance in FSX.

I don't quite believe in 2500k having better stats than i7, I bet that i7 has some more "raw power", stability or cache and/or faster memory bus.

I will go compare them now.