Just wanted to share my setup.
Screens: 3x 40″ 4k Philips
Chassi: Fractal Design Define XL R2
CPU: Intel Core i7 4770K 3.5Ghz
GPUs: 2x Asus GeForce GTX 980 Ti Strix OC (SLI)
Memory: 4x 4GB Corsair XMS3 1600Mhz
PSU: Corsair TX850
Motherboard: MSI Z87 Xpower
Hardrives: OCZ Vertex 3 SSD 120GB + Samsung HD103UJ 1TB + Samsung HD204UI 2TB + Seagate Barracuda ST3320620AS 320GB + Samsung HD502IJ 500GB
Sound: Logitech Z-906
Transducers: 2x Buttkicker Gamer 2 + Behringer EP2000 Europower
Headtracking: TrackIR 5
Keyboard: Corsair K95
Mouse: Logitech G502
Steering wheel, pedals and shifters/handbrakes: Logitech G27 + Frex Shift+ + Frex Handb+
Joystick, rudder pedals and thrusters: Thrustmaster Hotas Warthog A-10C + Saitek Pro Flight Combat Rudder pedals