What PSU should I choose, if it can run..

[KiwiStyles]

Somewhat as the title says, I'm looking to get a new CPU for my computer.
Here's what I will be running (sorry some of the products I don't have the exact models or brand names for, I'm not currently in the same city)

AMD PHENOM II X6 3.30GHZ
Gigabyte GA-880GM-UD2H
16GB RAM
128 SSD boot disk
two 640GB hard drives
XFX HD 6990

I am currently using a 600w Thermaltake PSU, I can't remember the model.
I am fairly sure due to upgrading to the hd 6990 I will need to upgrade my PSU. Here are my choices:

If it would run perfectly fine:
Silverstone SST- ST60F

Other choice:
FSP Raider Series 750W 80Plus Bronze

I am in New Zealand and these are the power supplies currently within my price range.
Cheers for the help.

 

[Rockdpm]

What CPU you upgrading to? I recommend you try getting atleast a 800 watt.. the 6990 or really any DUAL GPU card can consume some power like nothing.. the 690 is a bit better at it than most but for the most part that 6990 is whats gonna need the power. Most CPU's youd upgrade to (Unless your doing 2011) won't need a whole ton of extra power even with a slight OC. but a good quality 850 watt is recommended

 

[KiwiStyles]

Ah sorry I meant to say I was upgrading the GPU, the GPU is being upgraded to that 6990, my CPU shall stay the same.

 

[KiwiStyles]

Also possibly looking at a Seasonic M12D 850W
However it is a fair bit more expensive.

 

[KiwiStyles]

Best answer selected by KiwiStyles.

 

[Rockdpm]

Glad we were able to help! If you ever have any further questions let us know