Plugin question

Hi,
I’m working on a website and was wondering if anyone knew of a good plug it that would allow users build their own pages with an already premade template. like adding text and headers and pictures and maybe even video’s.
To explain more…
I have an artist section, I would like artists to be able to sign up and customize their own page.
Or I have a business section, and I would like businesses to be able to sign up and customize their own pages as well.
Like myspace used to provide users with a general page, I would like to provide the same template for either artists or businesses.

Any help will be greatly appreciated!!!
Thank you!!!