Robert_Charlton - 5:08 am on Jan 11, 2013 (gmt 0)
Hi Ron. Your post involves both WordPress specific questions as well as general SEO questions.
WordPress specific potentially involves questions of how best to accomplish the 301 redirects you'll need to change your urls... whether to try to do those in .htaccess on your new server, or to use an SEO plug-in, and what plug-in to use.
You may have also some questions about best site architecture choices for the migration, choice of SEO-friendly themes, etc, which are maybe more WordPress specific than Google specific... so I'm moving this to the WordPress forum first to consider those basic WP questions.