Power Supply Question

I own a 750W Corsair PSU and was about to do some upgrades to an aging system for my brother. I was wondering if the PSU I have will be fine in an 6870 Crossfire setup with an OC'd FX-8350.

My main concern is the power draw from the OC'd 8350, I've heard they can be hogs in certain situations. I don't have much experience with AMD chips and the overhead needed in order to keep things in a safe range.

I'm assuming it'll be fine, but having another input would be appreciated.

Thanks again!

The PSU in question:

http://www.newegg.com/Product/Product.aspx?Item=17-139-...