mod rewrite rule

A quick one about mod_rewrite. I added ssl to cduce.org for our user pages. However I’ve no use of ssl to serve our static pages. This rule will redirect all https requests (^443$) that are not related to userdirs (!^/~) to http:// .

        RewriteEngine   on
        RewriteCond %{SERVER_PORT} ^443$
        RewriteCond %{REQUEST_URI} !^/~
        RewriteRule ^(.*)$ http://www.cduce.org$1 [L,R]