4. How much money did you spend on the rig as it is right now?

I spent about $ 7.500 in hardware and peripherals in the system and watercooler $ 2.380! 

 5. How often do you update/buy a new rig?

 I do upgrades 3 times a year, but this year I invested more.

6. What components are used?

HARDWARE:

Intel Core i7 3930k
ASUS Rampage IV Extreme X79
16GB G.SKILL RIPJAWS Z 1866MHz
3x ATI SAPPHIRE 7970 Crossfire
Corsair AX1200
2x SSD Corsair Force 3 GT 120GB/RAID 2 0
2x Western Digital Caviar Black 1.5 TB
Corsair Obsidian 700d
Led Samsung 22 "
Mad Catz R.A.T 7 Black Ops 5600dpi
Razer Black Widow
Razer Destructor
Headphone Steelseries 5H
Gamer Glasses Steelseries

Watercooling SYSTEM

Cpu: EK Supreme HF Nicke(EN)
VGA Block: 2x EK-FC6990 Nickel
Backplate VGA: 3x EK-FC7970-BLACK
Accessories-GPU/Mosfet Blocks: BITSPOWER SLI
Radiators: 3x Koolance HXCUH1020 360
1xXSPC RX240
1x Black Ice III 360 Extreme X-Flow
Reservoir: Koolance RP-452X2 Dual 5.25in
EK TOP 140
Pumps: 3 x Koolance D5 PMP- 450/S
Fittings: Compression BitsPower Black 3 / 8 OD 5 / 8
Single membership: Bitspower G 1 / 4 "Black 45 Degree Rotary IG 1 / 4" Adapter
Rotary Fittings: 90 Degree Rotary Fitting Enzotech G 1 / 4 Thread
Tubbing: Primoflex Red 3 / 8 OD 5 / 8
Coolant: Primochill ICE
Rad Box: Phobya 360