Yeah, I think it is a good idea.
Fortunately, I'm at home this week, so Thursday night just before I crash for the night, I plan to restore the phone to its original out of the box state before I do the update. Although I'm one of the hated group of people that has NEVER had a problem with an update, but just to be safe and set a good example for the kids watching at home..

)
Geri O