Case : Nanoxia Deep Silence 6 (not released yet, but it's due in the coming weeks)
If you are into big cases go for it, personally i think Fractal Design Define R4 or Nanoxia Deep Silence 1 should be a better option.
Power source : Seasonic X-series 650W
Motherboard : Asus Z87 Plus
Here i have mix thoughts, i do recommend asus specially for the FanXpet2, but i personally went away from it out of having some issues with other things. While i love fanxpert i dislike it needs the full AI SUITE III for it to work, bunch of things there that i dont need and i have them loaded. I also dont like the way that asus concludes the CPU temp, not the same as cores nor cpu, its like formula they do with mulitple sensors, but no other software draws the same temp, this is very wierd, like for example on idle my cores are at 30C but on load 60C, but on AI SUITE the cpu displays 35C at idle and 40C at load. This made try to compensate on the temps, but at the same time it doesnt scale together with the cores, so i didnt like that. I believe fanXpet2 is a great piece of software and that asus should make a stand alone and use cores temps to regulate itself, that would make it perfect. For this, and other issues with realtek 1150 im now on MSI, wonderful BIOS and specially it has 2 true PWM headers, i can control them both independently from bios alone, i dont need extra software, its just a matter of chosing the right fans for it, also its restrictions on pure bios fan control 12.5% vs 40% on asus bios (on fanXpert you can drop to 0% if your fans allow). I'm going to do a post in the following days about it wiht more detail.
But im not trying to steer you away from asus, i still feel its a great choice, and less complicated than what i did.
Processor : Intel Haswell i7 4770 3.4Ghz
Second steve suggestion, if you dont need hyperthreading then go for the cheaper i5 4670.
Cooler : Noctua NH-U14S
Wonderful cooler, just expensive, the NF-A15 PWM will drop to 200rpm on FanXpert2. In the US we still dont have access to much of Scythe products, but since you are on EU, and if you were looking to save some, check Scythe Mugen 4 CPU Cooler: Scythe Strikes Back
Video card : Gainward GeForce GTX 770 Phantom 4GB
I would go with MSI Gaming N770 TF 2GD5/OC GeForce GTX 770 2GB 256-bit GDDR5 PCI Express 3.0 SLI Support Video Card
, good reviews on all the twin frozr cards on this gen, check TechPowerUp Review MSI GTX 770 TwinFrozr Gaming 2 GB
Storage : SSD Samsung 250GB SATA-III 2.5 inch 840 EVO Series Basic
Nice one, very new and not much info into how reliable, but seems to be a great choice among value ssds.
RAM : Corsair Vengeance Pro 16GB DDR3 1600MHz CL9 Dual Channel Kit
I would go with low profile low voltage, there is no need for tall heatsinks aside for looks, even memory overclcoking has very little real performance increase. I ran Crucial Ballistix Sport Very Low Profile 32GB Kit (8GBx4) DDR3-1600 1.35V UDIMM 240-Pin Memory Modules BLS4C8G3D1609ES2LX0
on a ASUS Maximus VI Gene and now running on a MSI Z87-GD65, no issues in both bios, recognized the XMP of 1600mhz and 1.35v, and booted with all 4 dims on both motherboards on the first time, really good memory, and stable, no bsods or anything, this kinda memory will allow you to use almost any cooler down the road, even twin towers shouldn't have a problem with it. I also used Crucial Ballistix Sport Very Low Profile 8GB Kit (4GBx2) DDR3-1600 1.35V UDIMM 240-Pin Memory Modules BLS2C4G3D1609ES2LX0
on an build i did for a friend 4 months ago, with MSI Z77A-G43 also the same no issues recognizing the XMP, running at 1.35V fine, no BSODs, stable and great.