mod_rewrite

in the vhost / server context, you need a leading slash
a RewriteCond on REQUEST_FILENAME must have DOCUMENT_ROOT prepended to match
always anchor your targets (/foo/ instead of foo/), as the RewriteBase won't apply in that context
Official Tutorials
- http://httpd.apache.org/docs/current/rewrite
- http://wiki.apache.org/httpd/Rewrite/
- On #httpd, ask: fajita: rewriteguide for current references