Conflict using RewriteRules

I currently have the following .htaccess

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1

RewriteRule ^redirect-to/(.*)$ index.php?cID=467&to=$1 [NC,L]
</IfModule>

I really need the

RewriteRule ^(.*)$ index.php/$1

, as it is the base for our CMS. However, the other line, "redirect-to" does not work. If I take out the first line, needed by the CMS, it works, if I add it together with the other, it fails... 500 errors.

I think it has to do because the first is a site-wide rewrite, and redirect-to is more specific. How can I get these to work together?