Have you considered a room controller?
I wanted a home theater, but my wife wanted an exercise room. I argued we could just watch exciting movies to get our hear rates up, but...
Anyhow in my living room I have can lights, a corner light and an end table lamp. I have a room controller where I have configured scene D as my movie scene. It turns off the can lights, and dims the corner light and the end table lamp to 25%. It's very easy just press scene D, then set the individual lights the way you want then, press the scene D button again 5 times to learn/set that scene. MUCH easier than messing with upstart. Now when ever I press scene D, all the lights return to my preset levels.
Additionally since I have an open floor plan and the foyer lights, hall lights and dining room lights can shine into the living room I added a few lines of programming in the Omni to handle them also.
Example:
WHEN Living Room SCENE D
AND IF Dining Room ON
THEN Dining Room SCENE D
Basically I just do this for each of the adjoining rooms.
Later I added a second room controller in a desktop mount and set it on the table by my recliner. This is cool just a room controller in a little box with a plug on it. This allowed me to set the movie mode without having to get up and walk over to the wall.
Finally I recently added a Pronto 9400 to the mix. Now I can amaze my friends and family with a single button press. It turns on the TV, Surround Sound and Media Center. Selects all the correct inputs, and since the room controllers have IR receivers built in, it dims the lights too.
Cool!
Hopefully some or all of this will be useful