Another thing that might be good is if you can grab the output of ccminer/cudaminer, to maybe set up a hashrate grabber.
So a button you press, it runs x amount of runs, probably in becnhmark mode. Gets the average, and stores it in the program

if like me you never know what your hashrates were on set things it would allow anyone to grab the program, test their cards for what they get, then use those to calculate
Not an easy task but possible im sure