We are a multi author blog, and I would like to set up the author page to display a sidebar for each author that won't display on the other pages. I found how to set the sidebars to only show on certain pages, but it looks like the author pages are an all-or-nothing situation. Is there any I can do this?

get the 'widget logic' plugin and then you can add widgets and have tehm displayed based on the author using a little logic.

that's it! Thank you!