I would like to know how i can have multiple blogs, each one in their own domain.

Like this:

http://www.mywordpress_mu_or_wp3network.com, and then, each “sub” blog, in the following independent domains:

http://www.country1.com/blog1
http://www.country2.com/blog2
http://www.country3.com/blog3

So, not folders of the same domain, and not sub-domains.
Different, individual, domains, for each blog.

And I would like each domain to get their own seo ranking. I mean, I know I could simply register the domains, and then redirect each one of them to the sub-domains configured under wp-mu or wp3 installation, but in that case, the seo ranking would go entirely to those sub-domains and not to the individual domains.

Hope I was clear.

Thank you in advance.