Multilanguage site

Hi, I'm trying to build a multilanguage site, with 4 different languages (en,de,es,it) and relative top level domains (like mydomain.com, mydomain.de, mydomain.es, mydomain.it).
I'd like the site to behave like this: instead of addresses like www.mydomain.com/es/ ... www.mydomain.es pointing to the translated content.
Is it possible to manage such translation with sefadvance and joomfish?
Do you know any other method?
Or should I build different sites replicating databases and pay 4 different sefadv licences, one per domain?

Hello,

You will have separate installations in this case. I can add the additional domains at no extra cost in this case, so you only need to buy one license.

Sorry, but looking futher into forums and docs I've seen it's possible to redirect a url to another one: if I redirect www.domain.es to www.domain.com/es , domain.de to domain.com/de and so on, it is going to work?

Yes, sure. In that case you can use Joomfish with only one Joomla installation.