First gaming rig-Need last minute advice

[DenseMeatStack]

Hello, I plan to buy this pc within 1-2 weeks and I need some last minute advice.

Mobo: http://www.newegg.com/Product/Product.aspx?Item=N82E16813128504
GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16814102948
Ram: http://www.newegg.com/Product/Product.aspx?Item=N82E16820145345 (Already purchased)
PCU: http://www.newegg.com/Product/Product.aspx?Item=N82E16819103727
SSD: http://www.newegg.com/Product/Product.aspx?Item=N82E16820147188

lastly, I picked out two PSU's and I am not sure which is better.
PC power and cooling mkIII 500w
http://www.newegg.com/Product/Product.aspx?Item=N82E16817703035
Antec Earthwatts 750w
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371051

I am leaning towards the earthwatts beacouse its a pretty good deal for 750w's.

 

[QSBladey]

I'd say the Antec one was better, though 750W is seriously overkill!

 

[zpwslayer]

I like the pc power and cooling because its a modular psu, but the antec is a great deal.. . You could get by just fine on the 500 watt unit, and have great cable management too! Win win

 

[DenseMeatStack]

I am not sure, can the motherboard I picked out fit the 6870?

 

[excella1221]

Get this instead.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013&Tpk