Is it possible to do this?

Greetings all!

I run both a blog and a business site. I’d love to be able to have two slightly different manifestations of the same blog: the full, normal one and one on the business site that only displays entries for particular tags in a very pared-down fashion. This way I’d only have one installation and management interface.

Or should I just be using WordPress MU and run two blogs?

Thanks everyone!