Right, so...

If you look at my motherboard in the above link it's the one plugged into slot #25. So the one you're recommending would be plugged into slot # 27 or 28, right? And they'd both be in use simultaneously?
Just to follow up:
-I'd rather spend less money. What's the cheapest one I could get that would work on my system with a 1600x900 monitor?
-second, will my PSU have enough juice to support 3 displays?