Apache a2ensite default settings

I have set up VirtualHost files from scratch before and only recently come over the a2ensite command. I think this is a great command and very useful, but most of my sites configured have the same settings (such as ssl certs, basic auth etc).

Is there a way I can change what a2ensite writes to in my sites-enabled directory when I use it? For example, automatically putting my ssl certs in, etc.

Cheers

P.S. On 11.04 Ubuntu Server with Apache2 installed. Permissions to install further software.