http://ca.pcpartpicker.com/p/LpVrnQ
Case: NZXT S340
An excellent budget case with minimalistic visual features and nice hardware capacity, they also come in black/white and soon they will be available in black with either red or blue detail. I myself use one and i can recommend it.
CPU: Intel I5-4960K
If you dont do video editing or rendering, you will never need the full potential of an I7, therefor I5's are the obvious choice for gaming, and the I5-4690k is the latest unlocked (which means it is designed to be overclocked) is the obvious choice, dont worry about overclocking as the Asus motherboard has plenty of features to optimize the cpu itself.
CPU Cooler: NZXT Kraken X61
A 280mm AiO (All in one) liquid cooler that fits perfectly in the NZXT S340, providing you with quiet, efficient cooling and a clean aesthetic for your case.
Motherboard: Asus Z97-AR
A new edition of the very popular Asus Z97-A, but it skipped the gold detail and went for a black/grey design to provide a more neutral and clean visual aesthetic, as any Z97 asus motherboard it comes with a brilliant UEFI and plenty of tools to help you optimize your system such as the AI suite and fan expert 3.
PSU: XFX XTR 650w
I went with the 650 over the 550 because they have the same pricepoint in canada, tho a 550 is more than plenty, its a fully modular, 80+ gold rated powersupply with all black cables and a hybrid/"fanless" mode.
RAM: Kingston Fury black series 8GB 1600mhz
Kingston is well known as one of the best ram manufactores and have a long history of excellent stable ram, I choose the fury black because it will add to the black colorscheme, but it can also be got in white, red, and some other colors. 8GB for gaming because you won't need more as most games still dont use that much ram.
GPU / Graphics card: EVGA GTX 970 ACX 2.0
This is my personally preferred brand, they are quiet and powerful, but in the end you can choose any GTX 970 by your own preference.
Storage 1: Samsung 840 EVO 120GB SSD
Samsung has a excellent reputation for fast and stable SSD's, i picked this one because it was cheap and provided enough storage for windows and important programs.
Storage 2: Seagate Barracuda 1TB 7200RPM
I picked this 1TB HDD for bulk storage for Games or other media.
OS / Operating system: Windows 8.1
not much to say here, It's the latest version of windows, alternatively you can get the (free) preview version of windows 10 here:
http://windows.microsoft.com/en-us/windows/preview-iso
An excellent Gamer build for the total of 1525 Canadian dollars incl. shipping.