There is a outstanding blender exporter if you search the forums, and I've seen it do great stuff for animation as well.
Check here on sketchup and email me if you have questions.
http://www.blitzbasic.com/Community/posts.php?topic=70531#791749
Check here on sketchup and email me if you have questions.
http://www.blitzbasic.com/Community/posts.php?topic=70531#791749