There's a : (colon) before the D in Dell in your thread... So it made an emoji instead of saying Dell.
Anyways, I don't see why this shouldn't work. As long as you don't get some aftermarket overclocking card with a 6-pin on it, you'll be fine. Go for one of these: http://pcpartpicker.com/products/compare/wrmxFT,8fx9TW,NndFf7/
They're all about the same, I guess just get whichever one appeals to your sense of aesthetics.