Best power supply for SLI 760?

I'm putting a build together with the intention to add a second GPU down the line. My question is whether or not I should go with the HX750 or save some money with the TX750. Specs are as follows:

CPU: i7-4770K

MOBO: Asus Z87-A

GPU: EVGA GTX760 2GB

RAM: Kingston HyperX Beast 16GB 1600MHz

Even though it's not that big of a deal, I'm also trying to keep a color theme with the black/gold although I could just take the blue sticker off of the HX750.

Seasonic has a black/gold theme on their Gold Certified lines.

Seasonic x650 should be enough for it.

It also has a black and gold colouring.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151088&Tpk=seasonic%20x650

Awesome! Don't know how I skimmed over Seasonic. Thanks!