Tim wrote:
I'm going to be adding an outboard graphics card to my PC. It has, one
each, a DVI-D, a displayport, and and HDMI port. My two monitors both have
DVI-D ports. I know I will need to get an adapter cable of some sort to
connect the second DVI-D monitor to either one of the other ports. Which
one would be best the displayport or the HDMI?
FYI, my second monitor also has a VGA port that is currently how it is
driven.

The short answer is, it doesn't matter. They're both digital connections
and will drive the monitors equivalently. DVI -- to HDMI is probably
easier/cheaper to find.