the specs u have mentioned, (excluding : Optical Drives, Additional PCI Express Cards, case fans, flex lights, External Devices,Cold Cathodes....Other Devices) will consume ~600W... recommended psu: cooler master GX-650W or 600w OCZ ModXstream or Corsair Enthusiast Series 650-Watt TX650..
Fan are about 3-8W each max. An Optical drive is rated around 25W max. To calculate W draw from lights you multiply the amperage rating by 12V. Overall you will find that these items do not add a relatively large load to the system; when selecting a PSU the primary load concerns are the CPU/GPU. After that I would think about ODD/HDD as they can be decent sized power draws if a lot of them cycle up at the same time...but that doesn't happen a lot. If you had a Raid 5 with 4-6drives in it then I would factor that somewhat higher thana JBOD because the array will spin up at the same time.
I say 750 or 850 in case you plan to SLI later. I Went with a 1200 corsair cuz I like overkill but I knew I would want to sli and sure enough I did. I have a 2nd coming tomorrow. Future proof this build with a higher watt psu now so you dont have to buy another later when you want to sli.
The PSU Wattage we recommend only gives you a general idea on what to consider while selecting a power supply. PCI cards, External devices, USB and Firewire devices, Cooling fans and other components may need more power.
The recommended total Power Supply Wattage gives you a general idea on what to look for BUT it is NOT a crucial factor in power supply selection! Total Amperage Available on the +12V Rail(s) is the most important, followed by the +5V amperage and then the +3.3V amperage.