Screencast Key Display with Capslock <-> CTRL respect?

[Tory S. Anderson]

I've been making screen casts for emacs and am looking into programs that 
display the keys being used. I'm on Linux with KDE, which effects some of the 
options. I was pretty happy with the way KeyMon works, and it was available in 
the repos; but then I noticed that although it has dedicated display positions 
for the CTRL key, it still registers my Capslock as a capslock stroke although 
I have it bound as CTRL. This means that it doesn't properly capture any 
commands normally using L-CTRL for my viewers. I'm sure there are other emacs 
screen casting folks out there; do you have a suggestion for getting a key 
monitor program that will properly interpret my Capslock as a CTRL? Or of 
changing a setting to make that happen in KeyMon? I don't know much about 
key-capturing on a system level, but apparently KeyMon is grabbing things at a 
lower level than KDE.