The prices are from newegg. I will actually be buying it from http://www.digitec.ch in Switzerland, but the prices are similar (maybe ~30$ more expensive in Switzerland), so i used the ones from newegg. Now, what do you think about the PC?
My biggest concern is the PSU, i am worried that 550W won't be enough for the system. The only ok PSUs avaiable in Switzerland, on the website that i will order from (which everyone recommends) that have similar wattage and price as the G-550 are the Corsair CX600M and RM650. I am not sure about getting a CX PSU, and i know very little about the Corsair RM. Is the RM as realiable as the Seasonic Gold, and, is there any need to get something more than a good 550W PSU for this PC (Linus powered a 780 and a 4770K with it, so i probably don't need to worry about it, but i wanted a couple more opinions on it, just to be safe)
Also, is the motherboard as reliable as the oh so popular Asus Z87-A? The biggest reason i wanted to get the D3H is because it will fit nicely with the color scheme of the PC, which might be a pretty stupid reason, but, hey, if the MB is good, why not?
550w is enough, yes. you could always get a 600w(or 620w) from seasonic/antec/xfx/corsair(not the cw series) and be fine. anything higher than 600w is overkill unless you intend to sli (in the near future). The RM series are very reliable psu's. The Gigabyte z87x is a reliable motherboard, the build quality of motherboards is so close nowadays that the choice mostly comes down to color scheme/bios/features.
Very solid build. there are different options here and there, but that's all personal preference. btw make sure you get 2x4gb ram not 1x8 because dual channel is a lot faster than just 1 stick.
I like your build. I recently built a rig similar to yours and used a Corsair 750 PSU, but that was overkill. 550 should be fine as long as you don't add a bunch of hard drives or a second video card later.