CPU: Intel i7 920 (socket 1366 LGA) @ 2.67ghz

MB: Gigabyte EX58-UD3R (x58 chipset)

RAM: 8GB DDR3

GFX: MSI Radeon 7850 Twin Frozr 2gb

HDD: 1TB Sata

SOUND: Asus Xonar DG

If I upgrade one thing (maybe more), what should it be? Bit stuck! Any help appreciated. :)

I don't have a set budget, but I don't want to spend shitloads. I want to buy the best 'bang for bucks' as my Dad says!

I don't seem to have any problems with most things but I'm in a position to upgrade now (money) so thinking it might be worth future-proofing it a bit! I play mostly Diablo 3 and some single player games. Currently Shadow of Mordor and Alien Isolation... Going to be playing UT4 and whatever other big shooters take my fancy. :)

*****UPDATE!*****

So, I ordered....

SSD: Crucial mx100 256GB - 90 euro
HDD: WD 3TB External drive - 99 euro
Cooler: Noctua NH-U12DX i4 - 70 euro
Case: Corsair 300R case - 85 euro

Extra: Computer chair (much needed, looks cool - racer style)

So.. I decided to an OC on my CPU before I consider upgrading the motherboard etc. As a cheaper option. I bought the cooler and case to help with that. The SSD and HDD are a general upgrade. I decided to wait with the graphics card since I'm not really having any problems with any games and it gives me time to save up for a full upgrade next year or something (CPU, MB and GPU).

I also got a new TV n stuff so I kinda blew money elsewhere. :P

I'll post another update when all the stuff arrives and say how the SSD feels and if I have success with the OC! :P

Thanks for the advice once again!

YARR!

******UPDATE******

Ok, final post for closure!

My motherboard went and died on me, great timing. This kind of forced (!) me to look at other upgrade options, went with new CPU, motherboard and ram as a more future-proof upgrade.

So... I now run this!

Case: Corsair 300r
CPU: i7 4790K @ 4.4ghz
MB: Asus Maximus VII Ranger
RAM: Corsair Vengeance Pro 16GB DDR 2133mhz
GPU: XFX Radeon R9 280X 3GB
Cooler: Noctua NH-D14 cooler
Storage: Crucial 256MB SSD, 1TB internal, 4TB external HDD

Monitor: 27" 120hz iiyama ProLite G2773HS

Zowie EC2 eVo mouse
QCK+ pad
Logitech G510 keyboard
Sennheiser HD280 pro headphones
New super comfy racer-style computer chair. :)

Wasn't cheap in the end, but god damn it's fast! :) I bought the GPU for 150 euros on ebay, the keyboard for 40 euros on ebay, the headphones from a UT player in NORWAY for 35 euros etc. The rest I bought from amazon and Scan.co.uk at normal prices. The monitor was free from my buddies at Team Dignitas, thanks once again for that!!!

So even from a mix of ebay deals, amazon/scan buys and a kindly gift from Team Dignitas I still ended up spending.... quite a lot. Ended up with a great PC that should last me quite a while though. :)