Hey there!
For such a powerful graphic card and quite expensive also I would strongly recommend you a little more expensive case (with great airflow and cooling) to keep all your components including this graphic card cool.
For example Cooler Master 690 III (you have few editions/models - black/green with/without side window etc.).
I bought the above mentioned case 1 week ago for myself - Green Edition (with window side panel)
http://www.ebay.com/itm/COOLER-MASTER-CM-690-III-GREEN-WITH-SIDE-WINDOW-PANEL-USB-3-0-SSD-SUPPORT-/272003936323?hash=item3f54b2b043:g:ybwAAOSw3ydVth72
VGA card length:
423 mm / 16.6 inch (without cage)
312mm / 12.3 inch (with SSD cage)
280mm / 11.0 inch (with HDD cage)
CPU cooler height: 171mm / 6.7 inch
Your card has dimensions 308 X 127 X 42.3 mm so it could fit in the case with SSD cage on which is still great.
I myself have completely removed the upper cage because I have only 1 SSD (which I have mounted behind the motherboard with included mounts) and I used bottom HDD cage for my 3 HDD's.
And I must say I'm very very satisfied with it. A lot of space for great cable managing and excellent airflow with very decent build materials.
I've bought 2 more additional fans (2 were already included in the case (front 200mm and rear 120mm). I've decided for NZXT fans (1x 200mm for top out-take and 1x120mm bottom in-take).
Previously I had budget gigabyte case for 40-50€ and now with this one my temperatures dropped significantly!
Graphic card (Gigabyte R9 280x 3GB GDDR5) temperatures dropped from 82-85°C to 72°C (maximum), CPU (i7 4771) dropped also for about 10°C just with replacing the case and optimizing airflow.
It's your decision but I think that case matters quite a bit. I would recommend this one.
Best regards.