PSU for OCing a 3570k?

Here are some options:

Rosewill CAPSTONE Series CAPSTONE-650-M 650W ATX12V v2.31 & EPS12V v2.92 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular $109
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

CORSAIR Enthusiast Series TX650M 650W ATX12V v2.31 / EPS12V v2.92 80 PLUS BRONZE Certified Semi Modular $109
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Seasonic SS-560KM Active PFC F3, 560W ATX12V V2.3/EPS 12V V2.91, 80Plus Gold Certified, Modular Power $129
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

That 3770k might max out at 150w at a nice overclock. The 7870 might run a good 240 or so while the other stuff in a basic single HDD and 2dimm set of ram with a CDRom drive might run 60-100w. I wouldn't imagine you need more than 500 but it's always best to go with something good. Avenseth has made some nice recommendations but I just want to throw my vote out for the Corsair. That's a very nice PSU. I have always had the best luck with Corsair and Antec power supplies so getting yourself a 650w for that price with a decent Bronze rating is a good deal. Also you'll have plenty of overhead for a better card later on after the 7870 ends its life.

Here is another power supply, and its budget friendly :
http://www.directcanada.com/products/?sku=13220AC7434&v...