What's the best Gaming PC for under $8,700 AUD?

[CBrip31]

The accessories are 2 Monitors, Headset, Mouse, Keyboard and MousePad. I also need to know what the games are that can run on ultra.

 

[timeconsumer]

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-5960X 3.0GHz 8-Core Processor ($1399.00 @ Umart)
CPU Cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler ($158.00 @ Umart)
Motherboard: ASRock X99 Extreme4 ATX LGA2011-3 Motherboard ($339.00 @ CPL Online)
Memory: G.Skill Ripjaws Series 16GB (4 x 4GB) DDR4-2400 Memory ($234.00 @ IJK)
Storage: Samsung 850 Pro Series 1TB 2.5" Solid State Drive ($695.00 @ IJK)
Storage: Samsung 850 Pro Series 1TB 2.5" Solid State Drive ($695.00 @ IJK)
Video Card: EVGA GeForce GTX Titan X 12GB Video Card (2-Way SLI) ($1549.00 @ PLE Computers)
Video Card: EVGA GeForce GTX Titan X 12GB Video Card (2-Way SLI) ($1549.00 @ PLE Computers)
Case: Phanteks Enthoo Pro ATX Full Tower Case ($129.00 @ PCCaseGear)
Power Supply: EVGA 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($185.00 @ CPL Online)
Monitor: Samsung U28D590D 60Hz 28.0" Monitor ($585.00 @ PCCaseGear)
Monitor: Samsung U28D590D 60Hz 28.0" Monitor ($585.00 @ PCCaseGear)
Keyboard: ROCCAT Ryos MK Pro Wired Gaming Keyboard ($219.00 @ CPL Online)
Mouse: SteelSeries Sensei RAW Wired Laser Mouse ($59.00 @ CPL Online)
Headphones: Sennheiser G4ME ZERO Headset ($279.00 @ Scorptec)
Total: $8659.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-05-22 11:30 AEST+1000

It'll game at 4k or 1440p just about anything in Ultra (although lower framerates in 4k) Or you can get a Z97 + GTX 980 build and pay 6 months rent, your choice.