A dual monitor card...Looks kind of expensive...about $1200 to $1600 according to this website...
http://www.superwarehouse.com/Dual_M..._Cards/c3/1884
...does that seem roughly right?
Just to be sure I am looking at the right gizmos (I know very very little about hardware) the video splitter looks nice and cheap, like $20 or $30. Right?
When you said....
"We had a similar setup before we got a dual-monitor card. We output our experimental variables outside the experimental window--you have the gist of the idea--but we had to alter our set up in order to do so."
....I am puzzled by what you meant by "we had to alter our setup in order to do so." Do you mean you wrote some code and then when you wanted to do this VGA splitter solution you had to alter your setup? What about your setup had to change? It would seem your code could stay almost the same...I mean maybe you would have to change a line like this one...
viz.displaymode(800,600)
...or somethign like that, but what sort of onerous setup change did you have to do?