I need to know what wattage I need for an i5 4670k, MSI Z87-G41 PC Mate ATX LGA1150 Motherboard, Crucial Ballistix Sport 16GB (2 x 8GB) DDR3-1600 Memory, Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive, Gigabyte Radeon R9 290 4GB WINDFORCE Video Card, LG GH24NSB0 DVD/CD Writer, Microsoft Windows 8.1 - 64-bit (OEM) (64-bit), SAMSUNG E 120GB 840EVO SATA3 2.5", CORSAIR CARBIDE SPEC-02 WNDW ATX, and Cooler Master SickleFlow 69.7 CFM 120mm Fan x 4. All the online calculators have given me answers from 450-1100w. This will be used for heavy, heavy rendering and gaming.