Vocalcoffie

1 card is plenty.

Maybe think about the R9 380X

One is plenty dude, for one display at least.

The 750D is a fine case, I have one and I enjoy using it. There's some front airflow problems with the standard edition of make sure to get the 750D airflow edition unless you can score a cheap standard 750D and buy the performance kit.
Bought my 750D so I can hold a bunch of storage drives and unlike most people, I still have a use for 5.25 drive bays.
I'll tell you that once you get the 750D, you don't have to worry about space clearance for anything, it can fit everything you can throw at(not the best case for 4 way card setup).
Never really liked the enthoo pro...
Here's my setup.

Consider Logitech's newest one, the G810. It's a full-sized keyboard, but it has proper dome caps that don't suck. Same RGB and all. No macro keys, and no phone dock, and it doesn't look all gamery.

The G810 doesn't come with a wrist rest.
 
I have the G910 and people exaggerate the keycaps. To prove a point I had a mate come over and told him I'd changed them for the new cylindrical and he should try it out now (I hadn't). He was like yeah this is MUCH better man.
 
numpty.
 
It also doesn't look 'gamery' unless you set up the lighting that way - I have mine running white most of the time and you can barely tell it's a gaming mech.
 
Perhaps I'll run the same scene and tell someone else I've got the new G810 press sample, change the lighting on mine and cover the wristrest with a piece of black cloth. See what's up.

Having tried typing on the 910 I find the keycaps to be truly awful, and Logitech uses their Romer-G switches because basically they are too cheap to use mechanical standard keys so the keys DO NOT have a unified stem, meaning if you want to put normal keycaps on the keyboard you need to spend an additional $40 to get the compatible keycaps from Logitech. The fact that while some people are fine with the keycaps but a large number of people can not stand them means that Logitech should have made a normal keycap version available at the same price. Instead they are like "oh boy our product sucks! Should we improve it? NAH lets just bill them twice to end up with the usable product we should have sold in the first place!"

Screw you Logitech, screw you. I would not buy a product from them on principal.

Some good points mentioned. I moved from the 550D to 750D and was considerably disappointed with how many awesome features that the 550D contained had been removed for the 750D. I moved from the 750D to a Phanteks Enthoo Evolv ATX and it was truly glorious.

Scrapyard Wars 4!

It's a great case from what i've seen, enough space for pretty much anything you want to throw at it and looks sleek. Getting a bit old now, but i suppose class never goes out of style.