I eventually ditched the multi-PC idea as I simply couldn't get it to work. Something screwy was on my old machine, so $2.2k later on Newegg...
http://i103.photobucket.com/albums/m...lgooglecom.jpg
http://i103.photobucket.com/albums/m146/railz28/2.jpg
...with a little 12Gb or RAM, Vista 64 and HKN lovin'...
http://i103.photobucket.com/albums/m...28/photo-3.jpg
Gotta upgrade the accounts today or I lose the toons, but keeping them in vanilla WoW for now until I really get my script down. Working on disabling all hotkeys when Enter, R or / is pressed for chatting or slash commands, and re-enabled when Enter is pressed again.