Power supply

This will be just fine.

SeaSonic M12II 520 Bronze 520W ATX12V v2.3 / EPS 12V v2.91 SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply

That really will be enough, but if you don't feel comfortable with a 520W unit, this 600W unit is good as well.

OCZ ModXStream Pro 600W Modular High Performance Power Supply compatible with Intel Sandybridge Core i3 i5 i7 and AMD Phenom

thank you,

i went to http://www.thermaltake.outervision.com/ and filled out the psu calculator and it was saying i need 750 watts but that was at 100% peak load?

For a system using two GeForce GTX 560 Ti graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 700 Watt or greater power supply that has a combined +12 Volt continuous current rating of 50 Amps or greater and that has at least four 6-pin PCI Express supplementary power connectors.So since your only running one you would be fine with something like this XFX Core Edition PRO550W (P1-550S-XXB9) 550W ATX12V 2.2 & ESP12V 2.91 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Active PFC Power Supply http://www.newegg.com/Product/Product.aspx?Item=N82E168... or the above mentioned seasonic

For a GeForce GTX 560 Ti Superclocked, EVGA recommends a minimum of a 500 watt power supply, with at least 30A (360W) combined available on the +12V rails.

http://www.evga.com/products/moreInfo.asp?pn=01G-P3-156...

oh ok sweet! thank you!!
im kinda a noob at this so i have another question... my mobo says RAM ddr3 2400mhz and my ram cards say 1333mhz what exactly does that mean?

i have 2 @ 4Gbt ram at 1333mhz

it's memory timings you could read this to better understand it http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=w...

Ok yeah that helped a ton!! thank you!!!

Your welcome!