Create a Blog feature similar to edublogs without buddypress

Hi there,

I would like to integrate a feature similar to Edublog in which any visitor could create his own blog without complications from the home page. I have been looking around in the plugin and theme lists but I do not find any which solve this problem. I also would like to have two different kind of blogs to create (gratis and paid).

If I understood right, the Edublog theme just work with Buddypress. Is that correct? I do not want to incorporate as many features as buddypress has.