Question about AppleScript command.

Question

I am looking for a command in AppleScript that will Operate a Key Binding. For example, I want to, in my script, have the computer use "Command-Shift-Z" without me touching the keyboard. I have looked through the entire AppleScript PDF from Apple and found nothing that could help me. I have considered using Terminal to create a script that fires the key binding, but I know very little about how to use Terminal. I have also played around with X11, (for about an hour and knowing nothing about what it is,) and that got me nowhere. There was a "bind" command in X11, but like I said, I have no idea what X11 is.
If AppleScript can't do this for me, could someone suggest a way of scripting that command some other way, then importing\implementing it in AppleScript?
I am basically trying to automate my dictation program by using Mac's built in "Speech" to start the program, then turn off "Speech" then turn on the microphone in the other program and open a new notepad to dictate to.
I have every part of the script down but the parts that require input from the keyboard....
Any help is GREATLY appreciated!

Answer 1

Thank you again for the help! I have figured it all out, thank god for apple having an easy laungage to understand! I'll post my script here and in the other forums, just incase someone is looking for something like this. I have kind of taken it upon myself to set my mac up to run, nearly, or totally, from voice commands.
Thank you again!
tell application "MacSpeech Dictate.app"
activate
end tell
tell application "System Events"
if UI elements enabled then
tell process "MacSpeech Dictate"
set frontmost to true
tell menu bar 1
tell menu "File"
click menu item "New Note Pad"
end tell
tell menu "Speech"
click menu item "Microphone On"
end tell
end tell
end tell
tell process "Finder"
key down {command, shift}
keystroke "z"
key up {command, shift}
end tell
tell process "MacSpeech Dictate"
set frontmost to true
end tell
end if
end tell
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