Rate my PC Build

Hey guys,

I'm building a gaming desktop computer and want your input on my components. I don't plan on overclocking or maybe OC'ing a bit. I'm trying to keep the cost under $1000. Thanks :D

intel i5 2500k : http://www.ncix.com/products/?sku=57962&promoid=1209

cpu cooler : http://www.ncix.com/products/?sku=41337

gtx 570 : http://www.ncix.com/products/?sku=58573&promoid=1030

Mobo : www.ncix.com/products/?sku=73951&promoid=1030

RAM : www.ncix.com/products/?sku=57953&promoid=1209

SSD : http://www.ncix.com/products/?sku=61051

PSU : www.ncix.com/products/?sku=67325&promoid=1030 (is 620W enough?)