redirect for after create new site

Could we get a redirect that after the user signs up and creates a site it sends them to their new dashboard? That would be a great help I think for some of the less a stoot users. WPMU does send them to a page that they can then select if they want to go to the site or the dashboard. But if they haaven't added anything what is the point of going to their site anyway.

Thanks for your help Amy