Finally building mine at the moment, literally 14 months after I bought the case!
My primary system is now an overclocked Intel 5930k X-99 system with Tri-fire in a Corsair 750d case to drive my 4k Panny 58" TV, so the Ncase N1 build has changed a bit but will still be very capable...in fact it's slightly more powerful than my initial plans.
Haswell i7 4770k @ 4.5Ghz
Asus Maximus VI Impact mITX
8GB DDR3
Palit Nvidia GeForce GTX 980 JetStream 4GB
Seidon 240m AIO liquid cooling
600W Silverstone Strider SST-SX600-G SFX 80 Plus Gold PSU
I plan to put it upstairs in the bedroom and it can drive my 55" 1080p Panny VT50 plasma.
All the bits worked in a Corsair 350d case (Well, the GPU and PSU are new) so touch wood it should be ok.
Will upload some pictures tomorrow.