I have a question about duplicate content. If I setup WP as my homepage and feed the comments to my forum say with this plugin Complete Wordpress/Vbulletin Bridge - Share Users And Postings - Page 23 - vBulletin.org Forum wouldn't I then being creating duplicate content and killing my SEO?

I made a comment in the thread along those lines. Since you will be having a WP article then also a forum post then the comments.

Also there is a plugin for WP that (like VbSeo) creates a sitemap for search engines. Would this be wise to have another site map get generated from another product?

Thank you