1000€ ?
GTX960 OC 4go (MSI)
i5 4690("k" if you want to overcloak) (i7 are useless for games atm, maybe in 5-8yo, it will)
16go RAM (4x4, not 2x8)
120go or 240go SSD (ONLY FOR WINDOWS INSTALLATION and maybe some few games but it has to be almost empty)
2To HDD Seagate Barracuda or Green Caviar. (If I was you, i'd put 2x2to HDD)
MotherCard Z97 MSI (socket 1150) or MSI B85-G43 GAMING for exemple.
Any hardcase ATX or mini-ATX
Alim' 650Watts should be largly ok with a great 24" Screen + Mouse/Keyboard + Joystick etc..
For exemple :
http://www.topachat.com/pages/configomatic.php?c=Nigny9GYY4SSDNPqAw7YjH%2B1m3rlb2ty3SYKNbtM1MI%3DDONT CARE BOUT PRICES ON THIS WEBSITE, THEY ARE TOOK FROM THEIR PROVIDERS (not always cheaper stuff) ==> TYPE ALL THOSE COMPONENTS ONE BY ONE ON GOOGLE FOR THE BEST PRICES AND YOU'LL CAN SAVE AROUND ~10% !
And of course... Windows is around 250€ so.. If you wanna buy it.. Then buy it, but you know what i mean.. huuuum huuuum !
But if i can give you an advice.. Take "Windows Seven Ultimate 64bits" Not Win10 for the moment.
With that PC dude... You'll make the games asking "how can he resists to us!"
Cheers !