Giganizer300PRO

Why a 500W power supply if u only need 350W

Hello everyone! First I just want to HUGE thank LinusTechTips and NCIX and everyone for their help!!!! B), I watched a lot of videos and it really helped me a lot, so THANK YOU SO MUCH. I am very grateful. But I have one more thing to go over... I am days from ordering the parts so this is the time for last minute changes. Now getting to the point... I have studied componets, computers and build them for like a month or two now and with the help of pcpartpicker.com I have made my own configuration. (parts are listed bellow, this is just the explaining) I chose an AMD FW 8350 processor and an ASUS Crossfire V Formula z motherboard to fit that CPU beast. Then I got an EVGA GeForce GTX 760 Superclocked to 4GB of memory. I then have a Corsair Vengeance PRO DDR3-2400 RAM, which I don't really think it matters a lot. Hard drive is a nothing special Barracuda 2TB. I chose an NZXT Phantom 410 Red edition to fit all that components in to. Now here is when my doubts begin :wacko:: for the power suply I chose a Corsair RM 550W 80+ Gold Certified Power supply. I know its too much power (estimated wattage is arround 400W), but I am later on (when I get an aftermarket CPU cooler) planning on overclocking the CPU. I know it requires a little more wattage and some is also needed for the CPU cooler, but is 450W enough? And which power supply do I choose? I want it to be secure and safe. Please help me on that because its the only thing that is bugging me right now. If possible please recomend me a specific or a few PSUs. I dont wanna go over $1000 (up to $50 - $60 is acceptable). Here is the list of all components (also a link to pcpartpicker.com config bellow) :rolleyes:: CPU: AMD FX-8350 4.0GHz 8-Core Processor Motherboard: Asus Crosshair V Formula-Z ATX AM3+ Motherboard GPU: EVGA GeForce GTX 760 4GB Superclocked ACX Video Card RAM: Corsair Vengeance Pro 8GB (2 x 4GB) DDR3-2400 Memory PSU: Corsair RM 550W 80+ Gold Certified Fully-Modular ATX Power Supply Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive Case: NZXT Phantom 410 (Red) ATX Mid Tower Case Here is the link to pcpartpicker.com : http://pcpartpicker.com/p/WtfJBm Please help me with this power supply and the components in general. If there's anything you know might be a problem please tell me, because I want the best performance I can get for $1000. Thank you for your help in advance!