I've put together a little PHP script (seems to work on my site...) that you can use to redirect traffic to your site based on the default language setting of each visitor's browser.
You can set up as many pages as you care to make... one for each language you want to filter off.
I hope that the script will work for you, and that you'll find it useful. I've already discovered that over 30% of my traffic is non-English-speaking... and I'll be working to redirect it to appropriate sponsors over the next few days.
Full instructions are included in the script:-
http://www.adulttypeins.com/language.php.txt
Please let me know what you think, even if it is only to say GFY
