Blog URLs

I am installing Drupal in a literary site where each authors will have their own blog. But I would like to name the blogs name/url different from the user names. I mean: I have a user name John Doe that have a blog name literary vicius. I would like to access his blog following the url www.test.com/literary-vicius instead off www.test.com/john-doe. Somebody can say: “You can name the author Literary Vicius”, but I don’t want that, I want the authors name showing correctly in the posts.

I also tried Pathauto, but didnt find a Pattern for blog page paths that fulfill my necessity.

I saw something like what I need in the following site, showcased in 2007 here in Drupal: http://luftskibet.information.dk.

For example, they have the blog Helmand, written by Charlotte Aagaard:
http://luftskibet.information.dk/helmand
And the posts, something like:
http://luftskibet.information.dk/helmand/rahim_qalay
Normally, this blog will need to have the name http://luftskibet.information.dk/charlotte_aagaard

Please, somebody can help me? Thank you.

Aleph Ozuas
http://www.ciberarte.com.br
http://www.dzo.com.br