I know very little about this level of hardware , but to start the discussion
PCPartPicker part list:
http://pcpartpicker.com/p/KJw6K8
Price breakdown by merchant: http://pcpartpicker.com/p/KJw6K8/by_merchant/
CPU: Intel Xeon E5-2620 V3 2.4GHz 6-Core Processor ($418.98 @ SuperBiiz)
Motherboard: Asus Z10PA-D8 ATX Dual-CPU LGA2011-3 Motherboard ($374.99 @ Newegg)
Memory: Crucial 32GB (1 x 32GB) DDR4-2133 Memory ($750.98 @ Newegg)
Memory: Crucial 32GB (1 x 32GB) DDR4-2133 Memory ($750.98 @ Newegg)
Memory: Crucial 32GB (1 x 32GB) DDR4-2133 Memory ($750.98 @ Newegg)
Memory: Crucial 32GB (1 x 32GB) DDR4-2133 Memory ($750.98 @ Newegg)
Storage: OCZ RevoDrive 350 Series 960GB PCI-E Solid State Drive ($1228.11 @ Amazon)
Storage: Western Digital VelociRaptor 1TB 3.5" 10000RPM Internal Hard Drive ($213.98 @ SuperBiiz)
Storage: Western Digital VelociRaptor 1TB 3.5" 10000RPM Internal Hard Drive ($213.98 @ SuperBiiz)
Video Card: Asus GeForce GTX Titan Z 12GB Video Card ($2999.99 @ Newegg)
Case: Corsair 760T Black ATX Full Tower Case ($159.99 @ NCIX US)
Power Supply: LEPA G Series 1600W 80+ Gold Certified Fully-Modular ATX Power Supply ($259.99 @ Newegg)
Optical Drive: LG WH16NS40 Blu-Ray/DVD/CD Writer ($54.99 @ Newegg)
Operating System: Microsoft Windows 8.1 Pro (OEM) (64-bit) ($129.00 @ Amazon)
Total: $9057.92
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-10-06 00:47 EDT-0400
That price includes only one cpu , and one graphics card . I would probably want to stick with the single Titan Z for the time being [ actually you probably have to since the board does not support SLI ] , but I would have added the second cpu if the partpicker site had allowed me to .
The system also needs coolers for the processors . Probably water .
The REVO drive operates in a pci-e slot and is much faster than a conventional SSD . An M2 drive was a possibility too , but I couldnt find any in the capacity you were looking for . M2 is faster than pci-e though so it may be worth the compromise