Hey there, would you please take part of your time and have a look at the PC I’m about to buy and assemble?
I’ll use it for architecture stuff: mostly Rhino modelling, vRay, Unity and classic Photoshop etc. Plus some gaming. 
My basic idea was that GFX is mostly unimportant. HDD and RAM can be eventually upgraded and I already have 250GB SSD. My budget is 25 000 CZK which is about €925.
Motherboard: GIGABYTE Z170-D3H - Intel Z170
CPU: Intel Core i5-6600 (Skylake, 4x 3,5 GHz (Turbo 3,9 GHz)
Cooler: CoolerMaster Hyper 412S
RAM: Kingston HyperX Fury Black 16GB (2x8GB) DDR4 2400
GFX: GIGABYTE GV-N960OC-4GD, 4GB
(SSD: Samsung 250GB)
HDD: Seagate Desktop HDD - 1TB
Case: Corsair Carbide Series™ 300R
Power: Seasonic S12II-520 520W
This is link to the store with detailed descriptions, although it’s in Czech.
http://www.czc.cz/175536,176422,178262,99861,176625,99689,111301,74749/kody
Thank you!
-jonas