Looks really good. That PSU will have enough juice to power everything stock, EVGA suggests a 600W with 42A.
If you plan on overclocking anything though I would suggest getting something slightly beefier just to have the headroom.
Have you considered putting all your eggs in one basket and just shopping Newegg? Same price on the CPU and GPU.
There is a shipping charge on the GPU, but you also get a nifty little USB TV-in device.
And you can combo the CPU with a Corsair HX650
and pay less than you would for the 2500k and SeaSonic 620w separately, add in the $20 MiR and the deal gets even sweeter.
Please read through the thread thoroughly before responding.
Nobody wants to read a wall of text, formatting is your friend.
i5 3570k | 8GB G.Skill 1600MHz | R9 290 | SeaSonic 750X