its roughly 65mm from the top of the case.
OK Yeah this is a bit tight
To be fair, in my diagram the PSU is too low, if I shift it up properly, and move the Mobo down so the hinge of the CPU is at 65mm from the top, there is about a 6mm overlap.
I guess the Noctua NH-D14 won't fit. Think I'll have to opt for the H50 instead.
I'll wait until my case arrives before I purchase any other parts. But my gut is saying there isn't enough space.
http://img202.imageshack.us/img202/9465/pccasefit2.jpg
Guess I'll look into the H50 and H70 but I don't see them fitting in that 120mm spot at the back.