Though university I graduated from (and one my daughter currently attends) have limited academic licenses available, I chose to purchase an indvidual pro license that I could use for my personal and professional use in 2011. I am glad I did! At the time I purchased Camtasia Studio 7 (CS7), but at a time when Camtasia Studio 8 was being previewed and was a no cost upgrade. There have been some growing pains with Camtasia Studio 8 (CS8), but the current 8.2 release seems to have stabilized and all major features I seek now have more function and are as fast or faster to render as the old reliable CS7.
I am using one video card, an older one as well (NVIDIA GeForce GT 630). The two 24" monitors are both plugged into the same card (both via DisplayPort). They have independent displays -- it's set to Extend but of course it's not as if the system doesn't know how to select "full Screen" on either monitor (just about all programs know how to distinguish the separate monitors).