CONTROL ESCAPE
DELAY 200
STRING cmd
CTRL-SHIFT ENTER
DELAY 2800
ALT y
Another 2 seconds shaved off. ;)
Edit: Better version using run menu, should work when there's a lot of entries in the start menu, and doesn't put an unnecessary "y" in the CMD window if UAC is off.
GUI R
DELAY 200
STRING runas /profile /user:%COMPUTERNAME%\Administrator "cmd"
ENTER
DELAY 2700
ALT y
DELAY 100
BACKSPACE