Here is my newest and cheapest Intel/Nvidia build $600 flat on Newegg!

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4430 3.0GHz Quad-Core Processor ($181.98 @ Newegg)
Motherboard: ASRock H97M Anniversary Micro ATX LGA1150 Motherboard ($61.98 @ Newegg)
Memory: Team Dark 8GB (2 x 4GB) DDR3-1600 Memory ($42.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($52.99 @ Newegg)
Video Card: Zotac GeForce GTX 960 2GB Video Card ($199.99 @ Newegg)
Case: Xigmatek Recon ATX Mid Tower Case ($35.98 @ Newegg)
Power Supply: EVGA 430W 80+ Certified ATX Power Supply ($40.98 @ Newegg)
Case Fan: Rosewill RNBL-131209B 59.8 CFM 120mm Fan ($8.99 @ Newegg)
Case Fan: Rosewill RNBL-131209B 59.8 CFM 120mm Fan ($8.99 @ Newegg)
Total: $634.87
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-07-17 16:52 EDT-0400