Hello.

I have organised my site by language using the following structure:

www.domain.com    #spanish language version
www.domain.com/en #english language version

The site is of Spanish subject matter hence Spanish language takes priority at root of domain. Although the site is new at this stage I would hope visiting from google.com and google.es would return English and Spanish versions respectively.

Are there any particular steps I need take to separate the two. Should I add them both as individual sites in Google's webmaster tools and also should I submit individual site maps for each 'site' or as a whole?

Thanks in advance.