Is Everything in this build compatible and will leave no bottlenecks?
CPU: i5 3570K CPU Cooler: Thermaltake Frio Motherboard: ASRock Z77 Extreme6 GPU: SLI Gigabyte overclocked wind force GTX 670's RAM: Corsair Vengeance DDR3 1600Mhz 8GB (2 x 4GB) HDD: WD Caviar Blue 1TB 7200RPM 64MB cache PSU: Antec HCG-900 900 Watts Optical Drive: LG Blu Ray player Case: Thermaltake Overseer ( not sure about this one, it seems like it will fit SLI GTX 670's but not entirely sure)
More aboutbuild final verdict
There are no WD Blue's with 64mb of cache.
you can make do with a 750w power supply. 900w is overkill. i suggest a OCZ Zt750w power supply as it is fully modular and 80+ bronze. A seasonic M12II 620-750w is also a great option