Updates for Keynote 3 and Pages 2 (iWork 06 versions) are available from Software Update. Oddly, they aren't point versions - they're "v2" of the updates Apple released just last week, and they're pretty large. Also, they both have the same description as last week's updates.
Keynote: "This update to Keynote 3.0 addresses issues with three-dimensional charts and textures. It also addresses a number of other minor issues. This update should be installed on all computers that share your Keynote 3.0 files, so that textures display properly."
Pages: "Pages 2.0.1 addresses issues with charts and image adjust. It also addresses a number of other minor issues."
They're both available from Software Update. I'd offer links to Apple's downloads pages, but as of this writing they don't appear to be posted on Apple's site.
Thanks to everyone who sent this in.