I spent some time trying to figure out how to download non-english language packs to no avail!! The language name hyperlinks are not active so, there is no way to switch from the english language pack..
It turns out the only way to get a copy of the language and the related SP1 is to change the language suffix in the URL to the two letter language abbriviation, say fr for French.
http://www.microsoft.com/downloads/details.aspx?FamilyId=AD59175C-AD6A-4027-8C2F-DB25322F791B&displaylang=fr