Redirect non-members to about/intro page

Question

I´m making a small wordpress/buddypress community site where I want all content except an about page to be for members only.

I need to do a redirect to the about-page for all non-logged in users. When users log in (from the sidebar) they should end up on the blog/frontpage.

How can I achive this? I tried some different members-plugins for buddypress and wordpress but none of them did exactly what I wanted, or didn´t work with other important plugins (like WP-FB-autoconnect).

I´m guessing this is pretty easy to do with custom code in the header or functions file. But I´m not really a coder so I would like som help!