I may as well start on video cards since I have been keeping an eye on the reviews of the latest AMD stuff, as well as current trends. You will want to get a gtx980ti instead.
In short DO NOT BUY:
-Fury X
-Fury
-GTX 970, 980
Here is a simple list of cards I recommend in order of what you should consider first:
-GTX 980ti (6GB card) @ $650usd
-R9 390x (8GB card) @ $440usd
-R9 390 (8GB card) @ $330USD
-Anything in the $200 range depends on deals you can find
Here is why:
Video card ram, and it's importance and current usage in games:
DSR (VSR on the AMD side) is a game changing technology that gives better image quality by allowing you to upscale the game resolution up to 4k, and then down sampling it to your native resolution (i.e. 1080p). In short, running a game at 4k with minimal filters (antialising off etc) will give you a better image for about the same performance (i.e. frame rate) than running a 1080p image will all the filters turned on high. I noticed this for a long while now, and Logan has also been stating that he has the same experience.
Now, running games at higher resolution, especially 4k, is taxing on vram. At 4k the latest generation of games, such as Shadow of Mordor, can eat into 5 GB of ram, let alone max out 4GB. These are games that are out now, let alone what games a year from now will do. 4GB cards, simply will be bottle necked soon and will not be able to fully use their built in horsepower as efficiently as a 6-8gb card will. These cards will have to run at 1080p with filters which will be fine (not a disaster), but you may as well get the cards with more ram essentially for no additional cost, since the prices are the same as their 4GB counterparts.
Essentially: High end 4GB cards are obsolete (emphasis on 'high' end, since $200 range cards will not have the power to run latest gen games at 4k anyway, and thus won't need the vram for that).
Price per performance, and some cards trumping others:
First off, the GTX 980ti having essentially the same performance of a Titan x, (but at $650) mixes things up. The Fury x is the same price, has lower performance, and 2GB less ram. The Fury x is not economical and needs a price drop at minimum, but its 4GB of ram kills it as a high end card.
The GTX 980 is $100 less than the 980ti, but you will actually see increasing returns, rather than the usual diminishing returns by spending the extra money on the 980ti. That is just on ram performance, not to mention the 980ti has more vram. The Fury (standard not the Fury X) also suffers from the 980ti having a decent boost for the extra price. Therefore the gtx980 and Fury are invalidated by the 980ti.
The 390x is an 8GB card, In between the 970 and 980. Since it has double the vram, this alone makes it far more valuable than the 980 which just doesn't have the vram for a high end card.
The 390 has the same performance as a gtx970, is the same price and has (more than) double the vram. The 970 was the best bang for the buck a couple months ago, but it is not a good by at all anymore considering the 390 is straight up better.