Consider the 2500k over the 2400, Much better chip for overclocking and its only a few quid more, Maybe look at an SSD instead of the 10k drive, SSD's are a hell of a lot faster. Other than that it looks fine to me.
side note, That is 1 HUGE case to be putting a tiny -M motherboard inside. I have the 700D (same size) and same P8P67 pro board but not the -M version and its still tiny inside this case lol.