I would like one of the side bars to appear on some *page* pages and not others.

I am not sure what the best way to go about this would be. Any suggestions would be welcome.

Thanks!

Look at the sidebar options for the theme.

I want to be able to show one side bar for a group of *page* pages and a different sidebar for another group of *page* pages -- the ATO options do not seem to allow this level of specificity.

Are there other options?

I know there are plugins that will do things like this.

Do you have a suggestion for which plugin to use for this feature?

Best idea is to do a google search and try a bunch to see which best serves your needs